services: delete unused proto (#4604)

2 files changed, 0 insertions, 16073 deletions

diff --git a/services/src/generated/main/java/com/google/instrumentation/stats/proto/CensusProto.java b/services/src/generated/main/java/com/google/instrumentation/stats/proto/CensusProto.java
deleted file mode 100644
index 89a110c9f..000000000
--- a/services/src/generated/main/java/com/google/instrumentation/stats/proto/CensusProto.java
+++ /dev/null
@@ -1,15756 +0,0 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: google/instrumentation/census.proto
-
-package com.google.instrumentation.stats.proto;
-
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-  private CensusProto() {}
-  public static void registerAllExtensions(
-      com.google.protobuf.ExtensionRegistryLite registry) {
-  }
-
-  public static void registerAllExtensions(
-      com.google.protobuf.ExtensionRegistry registry) {
-    registerAllExtensions(
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-     *
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-
-    /**
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-     * to +999,999,999 inclusive.
-     * </pre>
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-    private int nanos_;
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-     * of time. Durations less than one second are represented with a 0
-     * `seconds` field and a positive or negative `nanos` field. For durations
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-     * of the same sign as the `seconds` field. Must be from -999,999,999
-     * to +999,999,999 inclusive.
-     * </pre>
-     *
-     * <code>int32 nanos = 2;</code>
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-    public final boolean isInitialized() {
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-
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-       * An 8-bit byte
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-       * <code>BYTES = 3;</code>
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-      /**
-       * <pre>
-       * S.I. unit
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-       * <code>SECONDS = 4;</code>
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-      /**
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-       * CPU core usage
-       * </pre>
-       *
-       * <code>CORES = 5;</code>
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-      CORES(5),
-      /**
-       * <pre>
-       * Last defined value; implementations should only use
-       * </pre>
-       *
-       * <code>MAX_UNITS = 6;</code>
-       */
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-
-      /**
-       * <pre>
-       * Implementations should not use this
-       * </pre>
-       *
-       * <code>UNKNOWN = 0;</code>
-       */
-      public static final int UNKNOWN_VALUE = 0;
-      /**
-       * <pre>
-       * Dimensionless
-       * </pre>
-       *
-       * <code>SCALAR = 1;</code>
-       */
-      public static final int SCALAR_VALUE = 1;
-      /**
-       * <pre>
-       * A single bit
-       * </pre>
-       *
-       * <code>BITS = 2;</code>
-       */
-      public static final int BITS_VALUE = 2;
-      /**
-       * <pre>
-       * An 8-bit byte
-       * </pre>
-       *
-       * <code>BYTES = 3;</code>
-       */
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-      /**
-       * <pre>
-       * S.I. unit
-       * </pre>
-       *
-       * <code>SECONDS = 4;</code>
-       */
-      public static final int SECONDS_VALUE = 4;
-      /**
-       * <pre>
-       * CPU core usage
-       * </pre>
-       *
-       * <code>CORES = 5;</code>
-       */
-      public static final int CORES_VALUE = 5;
-      /**
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-       *
-       * <code>MAX_UNITS = 6;</code>
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-
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-      /**
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-          getDescriptorForType() {
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-        return VALUES[desc.getIndex()];
-      }
-
-      private final int value;
-
-      private BasicUnit(int value) {
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-
-      // @@protoc_insertion_point(enum_scope:google.instrumentation.MeasurementDescriptor.BasicUnit)
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-      /**
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-
-      /**
-       * <code>repeated .google.instrumentation.MeasurementDescriptor.BasicUnit numerators = 2;</code>
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-      java.util.List<com.google.instrumentation.stats.proto.CensusProto.MeasurementDescriptor.BasicUnit> getNumeratorsList();
-      /**
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-      com.google.instrumentation.stats.proto.CensusProto.MeasurementDescriptor.BasicUnit getNumerators(int index);
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-      int getDenominatorsValue(int index);
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-    /**
-     * <pre>
-     * MeasurementUnit lets you build compound units of the form
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-     * To specify multiplication in the numerator or denominator, simply specify
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-     *     numerator: SECS
-     * - events/sec^2 (i.e. rate of change of events/sec):
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-     *     denominator: SECS
-     *     denominator: SECS
-     * To specify multiples (in power of 10) of units, specify a non-zero
-     * 'power10' value, for example:
-     * - MB/s (i.e. megabytes / s):
-     *     power10: 6
-     *     numerator: BYTES
-     *     denominator: SECS
-     * - nanoseconds
-     *     power10: -9
-     *     numerator: SECS
-     * </pre>
-     *
-     * Protobuf type {@code google.instrumentation.MeasurementDescriptor.MeasurementUnit}
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-    public  static final class MeasurementUnit extends
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-      public static final int NUMERATORS_FIELD_NUMBER = 2;
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-      public com.google.instrumentation.stats.proto.CensusProto.MeasurementDescriptor.BasicUnit getNumerators(int index) {
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-      public com.google.instrumentation.stats.proto.CensusProto.MeasurementDescriptor.BasicUnit getDenominators(int index) {
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-      /**
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-    /**
-     * <pre>
-     * The units used by this type of measurement.
-     * </pre>
-     *
-     * <code>.google.instrumentation.MeasurementDescriptor.MeasurementUnit unit = 3;</code>
-     */
-    public boolean hasUnit() {
-      return unit_ != null;
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-     * <code>int64 count = 1;</code>
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-    /**
-     * <pre>
-     * The arithmetic mean of the values in the population. If `count` is zero
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-     * </pre>
-     *
-     * <code>double mean = 2;</code>
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-
-    /**
-     * <pre>
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-     * </pre>
-     *
-     * <code>double sum = 3;</code>
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-    double getSum();
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-    /**
-     * <pre>
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-     * </pre>
-     *
-     * <code>.google.instrumentation.DistributionAggregation.Range range = 4;</code>
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-     * </pre>
-     *
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-    /**
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-     * </pre>
-     *
-     * <code>.google.instrumentation.DistributionAggregation.Range range = 4;</code>
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-   * Although it is not forbidden, it is generally a bad idea to include
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-       * The size of `bucket_count` must be no greater than N as defined in
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-       * Any suffix of trailing zero bucket_count fields may be omitted.
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-        return this;
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-       * A Distribution may optionally contain a histogram of the values in the
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-       * by `DistributionAggregationDescriptor.bucket_boundaries`. The sum of the
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-       * Any suffix of trailing zero bucket_count fields may be omitted.
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-        ensureBucketCountsIsMutable();
-        bucketCounts_.add(value);
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-       * A Distribution may optionally contain a histogram of the values in the
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-       * values in `bucket_counts` must equal the value in `count`.
-       * Bucket counts are given in order under the numbering scheme described
-       * above (the underflow bucket has number 0; the finite buckets, if any,
-       * have numbers 1 through N-2; the overflow bucket has number N-1).
-       * The size of `bucket_count` must be no greater than N as defined in
-       * `bucket_boundaries`.
-       * Any suffix of trailing zero bucket_count fields may be omitted.
-       * </pre>
-       *
-       * <code>repeated int64 bucket_counts = 5;</code>
-       */
-      public Builder addAllBucketCounts(
-          java.lang.Iterable<? extends java.lang.Long> values) {
-        ensureBucketCountsIsMutable();
-        com.google.protobuf.AbstractMessageLite.Builder.addAll(
-            values, bucketCounts_);
-        onChanged();
-        return this;
-      }
-      /**
-       * <pre>
-       * A Distribution may optionally contain a histogram of the values in the
-       * population. The histogram is given in `bucket_count` as counts of values
-       * that fall into one of a sequence of non-overlapping buckets, as described
-       * by `DistributionAggregationDescriptor.bucket_boundaries`. The sum of the
-       * values in `bucket_counts` must equal the value in `count`.
-       * Bucket counts are given in order under the numbering scheme described
-       * above (the underflow bucket has number 0; the finite buckets, if any,
-       * have numbers 1 through N-2; the overflow bucket has number N-1).
-       * The size of `bucket_count` must be no greater than N as defined in
-       * `bucket_boundaries`.
-       * Any suffix of trailing zero bucket_count fields may be omitted.
-       * </pre>
-       *
-       * <code>repeated int64 bucket_counts = 5;</code>
-       */
-      public Builder clearBucketCounts() {
-        bucketCounts_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000010);
-        onChanged();
-        return this;
-      }
-
-      private java.util.List<com.google.instrumentation.stats.proto.CensusProto.Tag> tags_ =
-        java.util.Collections.emptyList();
-      private void ensureTagsIsMutable() {
-        if (!((bitField0_ & 0x00000020) == 0x00000020)) {
-          tags_ = new java.util.ArrayList<com.google.instrumentation.stats.proto.CensusProto.Tag>(tags_);
-          bitField0_ |= 0x00000020;
-         }
-      }
-
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-          com.google.instrumentation.stats.proto.CensusProto.Tag, com.google.instrumentation.stats.proto.CensusProto.Tag.Builder, com.google.instrumentation.stats.proto.CensusProto.TagOrBuilder> tagsBuilder_;
-
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public java.util.List<com.google.instrumentation.stats.proto.CensusProto.Tag> getTagsList() {
-        if (tagsBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(tags_);
-        } else {
-          return tagsBuilder_.getMessageList();
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public int getTagsCount() {
-        if (tagsBuilder_ == null) {
-          return tags_.size();
-        } else {
-          return tagsBuilder_.getCount();
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.Tag getTags(int index) {
-        if (tagsBuilder_ == null) {
-          return tags_.get(index);
-        } else {
-          return tagsBuilder_.getMessage(index);
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder setTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag value) {
-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.set(index, value);
-          onChanged();
-        } else {
-          tagsBuilder_.setMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder setTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag.Builder builderForValue) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder addTags(com.google.instrumentation.stats.proto.CensusProto.Tag value) {
-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.add(value);
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder addTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag value) {
-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.add(index, value);
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder addTags(
-          com.google.instrumentation.stats.proto.CensusProto.Tag.Builder builderForValue) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.add(builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder addTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag.Builder builderForValue) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder addAllTags(
-          java.lang.Iterable<? extends com.google.instrumentation.stats.proto.CensusProto.Tag> values) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(
-              values, tags_);
-          onChanged();
-        } else {
-          tagsBuilder_.addAllMessages(values);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder clearTags() {
-        if (tagsBuilder_ == null) {
-          tags_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000020);
-          onChanged();
-        } else {
-          tagsBuilder_.clear();
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public Builder removeTags(int index) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.remove(index);
-          onChanged();
-        } else {
-          tagsBuilder_.remove(index);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.Tag.Builder getTagsBuilder(
-          int index) {
-        return getTagsFieldBuilder().getBuilder(index);
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.TagOrBuilder getTagsOrBuilder(
-          int index) {
-        if (tagsBuilder_ == null) {
-          return tags_.get(index);  } else {
-          return tagsBuilder_.getMessageOrBuilder(index);
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public java.util.List<? extends com.google.instrumentation.stats.proto.CensusProto.TagOrBuilder> 
-           getTagsOrBuilderList() {
-        if (tagsBuilder_ != null) {
-          return tagsBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(tags_);
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.Tag.Builder addTagsBuilder() {
-        return getTagsFieldBuilder().addBuilder(
-            com.google.instrumentation.stats.proto.CensusProto.Tag.getDefaultInstance());
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.Tag.Builder addTagsBuilder(
-          int index) {
-        return getTagsFieldBuilder().addBuilder(
-            index, com.google.instrumentation.stats.proto.CensusProto.Tag.getDefaultInstance());
-      }
-      /**
-       * <pre>
-       * Tags associated with this DistributionAggregation. These will be filled
-       * in based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 6;</code>
-       */
-      public java.util.List<com.google.instrumentation.stats.proto.CensusProto.Tag.Builder> 
-           getTagsBuilderList() {
-        return getTagsFieldBuilder().getBuilderList();
-      }
-      private com.google.protobuf.RepeatedFieldBuilderV3<
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-          getTagsFieldBuilder() {
-        if (tagsBuilder_ == null) {
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-                  ((bitField0_ & 0x00000020) == 0x00000020),
-                  getParentForChildren(),
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-          tags_ = null;
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-        return tagsBuilder_;
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-      public final Builder setUnknownFields(
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-
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
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-
-
-      // @@protoc_insertion_point(builder_scope:google.instrumentation.DistributionAggregation)
-    }
-
-    // @@protoc_insertion_point(class_scope:google.instrumentation.DistributionAggregation)
-    private static final com.google.instrumentation.stats.proto.CensusProto.DistributionAggregation DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new com.google.instrumentation.stats.proto.CensusProto.DistributionAggregation();
-    }
-
-    public static com.google.instrumentation.stats.proto.CensusProto.DistributionAggregation getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    private static final com.google.protobuf.Parser<DistributionAggregation>
-        PARSER = new com.google.protobuf.AbstractParser<DistributionAggregation>() {
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-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new DistributionAggregation(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser<DistributionAggregation> parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser<DistributionAggregation> getParserForType() {
-      return PARSER;
-    }
-
-    public com.google.instrumentation.stats.proto.CensusProto.DistributionAggregation getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
-
-  public interface DistributionAggregationDescriptorOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:google.instrumentation.DistributionAggregationDescriptor)
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-
-    /**
-     * <pre>
-     * A Distribution may optionally contain a histogram of the values in the
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-     * [bucket_bounds[i-1], bucket_bounds[i]) for 0 &lt; i &lt; N-2
-     * [bucket_bounds[i-1], +infinity) for i == N-1
-     * i.e. an underflow bucket (number 0), zero or more finite buckets (1
-     * through N - 2, and an overflow bucket (N - 1), with inclusive lower
-     * bounds and exclusive upper bounds.
-     * If `bucket_bounds` has no elements (zero size), then there is no
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-     * </pre>
-     *
-     * <code>repeated double bucket_bounds = 1;</code>
-     */
-    java.util.List<java.lang.Double> getBucketBoundsList();
-    /**
-     * <pre>
-     * A Distribution may optionally contain a histogram of the values in the
-     * population. The bucket boundaries for that histogram are described by
-     * `bucket_bounds`. This defines `size(bucket_bounds) + 1` (= N)
-     * buckets. The boundaries for bucket index i are:
-     * [-infinity, bucket_bounds[i]) for i == 0
-     * [bucket_bounds[i-1], bucket_bounds[i]) for 0 &lt; i &lt; N-2
-     * [bucket_bounds[i-1], +infinity) for i == N-1
-     * i.e. an underflow bucket (number 0), zero or more finite buckets (1
-     * through N - 2, and an overflow bucket (N - 1), with inclusive lower
-     * bounds and exclusive upper bounds.
-     * If `bucket_bounds` has no elements (zero size), then there is no
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-     * common boundary of the overflow and underflow buckets. The values must
-     * be monotonically increasing.
-     * </pre>
-     *
-     * <code>repeated double bucket_bounds = 1;</code>
-     */
-    int getBucketBoundsCount();
-    /**
-     * <pre>
-     * A Distribution may optionally contain a histogram of the values in the
-     * population. The bucket boundaries for that histogram are described by
-     * `bucket_bounds`. This defines `size(bucket_bounds) + 1` (= N)
-     * buckets. The boundaries for bucket index i are:
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-     * [bucket_bounds[i-1], bucket_bounds[i]) for 0 &lt; i &lt; N-2
-     * [bucket_bounds[i-1], +infinity) for i == N-1
-     * i.e. an underflow bucket (number 0), zero or more finite buckets (1
-     * through N - 2, and an overflow bucket (N - 1), with inclusive lower
-     * bounds and exclusive upper bounds.
-     * If `bucket_bounds` has no elements (zero size), then there is no
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-     * common boundary of the overflow and underflow buckets. The values must
-     * be monotonically increasing.
-     * </pre>
-     *
-     * <code>repeated double bucket_bounds = 1;</code>
-     */
-    double getBucketBounds(int index);
-  }
-  /**
-   * Protobuf type {@code google.instrumentation.DistributionAggregationDescriptor}
-   */
-  public  static final class DistributionAggregationDescriptor extends
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-     * A Distribution may optionally contain a histogram of the values in the
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-     * `bucket_bounds`. This defines `size(bucket_bounds) + 1` (= N)
-     * buckets. The boundaries for bucket index i are:
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-     * [bucket_bounds[i-1], bucket_bounds[i]) for 0 &lt; i &lt; N-2
-     * [bucket_bounds[i-1], +infinity) for i == N-1
-     * i.e. an underflow bucket (number 0), zero or more finite buckets (1
-     * through N - 2, and an overflow bucket (N - 1), with inclusive lower
-     * bounds and exclusive upper bounds.
-     * If `bucket_bounds` has no elements (zero size), then there is no
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-     * <pre>
-     * A Distribution may optionally contain a histogram of the values in the
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-     * [bucket_bounds[i-1], bucket_bounds[i]) for 0 &lt; i &lt; N-2
-     * [bucket_bounds[i-1], +infinity) for i == N-1
-     * i.e. an underflow bucket (number 0), zero or more finite buckets (1
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-     * bounds and exclusive upper bounds.
-     * If `bucket_bounds` has no elements (zero size), then there is no
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-     * </pre>
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-     * <code>repeated double bucket_bounds = 1;</code>
-     */
-    public int getBucketBoundsCount() {
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-    }
-    /**
-     * <pre>
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-        /**
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-        /**
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-        /**
-         * <pre>
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-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public Builder setIntervalSize(com.google.instrumentation.stats.proto.CensusProto.Duration value) {
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-          } else {
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-
-          return this;
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-        /**
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-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public Builder setIntervalSize(
-            com.google.instrumentation.stats.proto.CensusProto.Duration.Builder builderForValue) {
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-            intervalSize_ = builderForValue.build();
-            onChanged();
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-            intervalSizeBuilder_.setMessage(builderForValue.build());
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-
-          return this;
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-        /**
-         * <pre>
-         * The interval duration. Must be positive.
-         * </pre>
-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public Builder mergeIntervalSize(com.google.instrumentation.stats.proto.CensusProto.Duration value) {
-          if (intervalSizeBuilder_ == null) {
-            if (intervalSize_ != null) {
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-                com.google.instrumentation.stats.proto.CensusProto.Duration.newBuilder(intervalSize_).mergeFrom(value).buildPartial();
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-          } else {
-            intervalSizeBuilder_.mergeFrom(value);
-          }
-
-          return this;
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-        /**
-         * <pre>
-         * The interval duration. Must be positive.
-         * </pre>
-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public Builder clearIntervalSize() {
-          if (intervalSizeBuilder_ == null) {
-            intervalSize_ = null;
-            onChanged();
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-            intervalSize_ = null;
-            intervalSizeBuilder_ = null;
-          }
-
-          return this;
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-        /**
-         * <pre>
-         * The interval duration. Must be positive.
-         * </pre>
-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public com.google.instrumentation.stats.proto.CensusProto.Duration.Builder getIntervalSizeBuilder() {
-          
-          onChanged();
-          return getIntervalSizeFieldBuilder().getBuilder();
-        }
-        /**
-         * <pre>
-         * The interval duration. Must be positive.
-         * </pre>
-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
-         */
-        public com.google.instrumentation.stats.proto.CensusProto.DurationOrBuilder getIntervalSizeOrBuilder() {
-          if (intervalSizeBuilder_ != null) {
-            return intervalSizeBuilder_.getMessageOrBuilder();
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-            return intervalSize_ == null ?
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-        /**
-         * <pre>
-         * The interval duration. Must be positive.
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-         *
-         * <code>.google.instrumentation.Duration interval_size = 1;</code>
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-        private com.google.protobuf.SingleFieldBuilderV3<
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-
-        private double count_ ;
-        /**
-         * <pre>
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-         * </pre>
-         *
-         * <code>double count = 2;</code>
-         */
-        public double getCount() {
-          return count_;
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-        /**
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-         * <code>double count = 2;</code>
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-        public Builder setCount(double value) {
-          
-          count_ = value;
-          onChanged();
-          return this;
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-        /**
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-         * </pre>
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-         * <code>double count = 2;</code>
-         */
-        public Builder clearCount() {
-          
-          count_ = 0D;
-          onChanged();
-          return this;
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-
-        private double sum_ ;
-        /**
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-         * </pre>
-         *
-         * <code>double sum = 3;</code>
-         */
-        public double getSum() {
-          return sum_;
-        }
-        /**
-         * <pre>
-         * The cumulative sum of measurements in this interval.
-         * </pre>
-         *
-         * <code>double sum = 3;</code>
-         */
-        public Builder setSum(double value) {
-          
-          sum_ = value;
-          onChanged();
-          return this;
-        }
-        /**
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-         * </pre>
-         *
-         * <code>double sum = 3;</code>
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-          sum_ = 0D;
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-          return this;
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-     */
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-     */
-    public java.util.List<? extends com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.IntervalOrBuilder> 
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-    /**
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-     * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-     */
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-     * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-     */
-    public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval getIntervals(int index) {
-      return intervals_.get(index);
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-    /**
-     * <pre>
-     * Tags associated with this IntervalAggregation. These will be filled in
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-     * </pre>
-     *
-     * <code>repeated .google.instrumentation.Tag tags = 2;</code>
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-      return tags_;
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-    /**
-     * <pre>
-     * Tags associated with this IntervalAggregation. These will be filled in
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-     * </pre>
-     *
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-
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
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-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
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-      /**
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-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval getIntervals(int index) {
-        if (intervalsBuilder_ == null) {
-          return intervals_.get(index);
-        } else {
-          return intervalsBuilder_.getMessage(index);
-        }
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder setIntervals(
-          int index, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval value) {
-        if (intervalsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
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-          ensureIntervalsIsMutable();
-          intervals_.set(index, value);
-          onChanged();
-        } else {
-          intervalsBuilder_.setMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder setIntervals(
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-        if (intervalsBuilder_ == null) {
-          ensureIntervalsIsMutable();
-          intervals_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          intervalsBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
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-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder addIntervals(com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval value) {
-        if (intervalsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
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-          ensureIntervalsIsMutable();
-          intervals_.add(value);
-          onChanged();
-        } else {
-          intervalsBuilder_.addMessage(value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder addIntervals(
-          int index, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval value) {
-        if (intervalsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
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-          intervals_.add(index, value);
-          onChanged();
-        } else {
-          intervalsBuilder_.addMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder addIntervals(
-          com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder builderForValue) {
-        if (intervalsBuilder_ == null) {
-          ensureIntervalsIsMutable();
-          intervals_.add(builderForValue.build());
-          onChanged();
-        } else {
-          intervalsBuilder_.addMessage(builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder addIntervals(
-          int index, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder builderForValue) {
-        if (intervalsBuilder_ == null) {
-          ensureIntervalsIsMutable();
-          intervals_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          intervalsBuilder_.addMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder addAllIntervals(
-          java.lang.Iterable<? extends com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval> values) {
-        if (intervalsBuilder_ == null) {
-          ensureIntervalsIsMutable();
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-              values, intervals_);
-          onChanged();
-        } else {
-          intervalsBuilder_.addAllMessages(values);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder clearIntervals() {
-        if (intervalsBuilder_ == null) {
-          intervals_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
-          onChanged();
-        } else {
-          intervalsBuilder_.clear();
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public Builder removeIntervals(int index) {
-        if (intervalsBuilder_ == null) {
-          ensureIntervalsIsMutable();
-          intervals_.remove(index);
-          onChanged();
-        } else {
-          intervalsBuilder_.remove(index);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder getIntervalsBuilder(
-          int index) {
-        return getIntervalsFieldBuilder().getBuilder(index);
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.IntervalOrBuilder getIntervalsOrBuilder(
-          int index) {
-        if (intervalsBuilder_ == null) {
-          return intervals_.get(index);  } else {
-          return intervalsBuilder_.getMessageOrBuilder(index);
-        }
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public java.util.List<? extends com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.IntervalOrBuilder> 
-           getIntervalsOrBuilderList() {
-        if (intervalsBuilder_ != null) {
-          return intervalsBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(intervals_);
-        }
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder addIntervalsBuilder() {
-        return getIntervalsFieldBuilder().addBuilder(
-            com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.getDefaultInstance());
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder addIntervalsBuilder(
-          int index) {
-        return getIntervalsFieldBuilder().addBuilder(
-            index, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.getDefaultInstance());
-      }
-      /**
-       * <pre>
-       * Full set of intervals for this aggregation.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.IntervalAggregation.Interval intervals = 1;</code>
-       */
-      public java.util.List<com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder> 
-           getIntervalsBuilderList() {
-        return getIntervalsFieldBuilder().getBuilderList();
-      }
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-          getIntervalsFieldBuilder() {
-        if (intervalsBuilder_ == null) {
-          intervalsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.Interval.Builder, com.google.instrumentation.stats.proto.CensusProto.IntervalAggregation.IntervalOrBuilder>(
-                  intervals_,
-                  ((bitField0_ & 0x00000001) == 0x00000001),
-                  getParentForChildren(),
-                  isClean());
-          intervals_ = null;
-        }
-        return intervalsBuilder_;
-      }
-
-      private java.util.List<com.google.instrumentation.stats.proto.CensusProto.Tag> tags_ =
-        java.util.Collections.emptyList();
-      private void ensureTagsIsMutable() {
-        if (!((bitField0_ & 0x00000002) == 0x00000002)) {
-          tags_ = new java.util.ArrayList<com.google.instrumentation.stats.proto.CensusProto.Tag>(tags_);
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-      private com.google.protobuf.RepeatedFieldBuilderV3<
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-
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public java.util.List<com.google.instrumentation.stats.proto.CensusProto.Tag> getTagsList() {
-        if (tagsBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(tags_);
-        } else {
-          return tagsBuilder_.getMessageList();
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public int getTagsCount() {
-        if (tagsBuilder_ == null) {
-          return tags_.size();
-        } else {
-          return tagsBuilder_.getCount();
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public com.google.instrumentation.stats.proto.CensusProto.Tag getTags(int index) {
-        if (tagsBuilder_ == null) {
-          return tags_.get(index);
-        } else {
-          return tagsBuilder_.getMessage(index);
-        }
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder setTags(
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-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.set(index, value);
-          onChanged();
-        } else {
-          tagsBuilder_.setMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder setTags(
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-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder addTags(com.google.instrumentation.stats.proto.CensusProto.Tag value) {
-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.add(value);
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder addTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag value) {
-        if (tagsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTagsIsMutable();
-          tags_.add(index, value);
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder addTags(
-          com.google.instrumentation.stats.proto.CensusProto.Tag.Builder builderForValue) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.add(builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder addTags(
-          int index, com.google.instrumentation.stats.proto.CensusProto.Tag.Builder builderForValue) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          tags_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          tagsBuilder_.addMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder addAllTags(
-          java.lang.Iterable<? extends com.google.instrumentation.stats.proto.CensusProto.Tag> values) {
-        if (tagsBuilder_ == null) {
-          ensureTagsIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(
-              values, tags_);
-          onChanged();
-        } else {
-          tagsBuilder_.addAllMessages(values);
-        }
-        return this;
-      }
-      /**
-       * <pre>
-       * Tags associated with this IntervalAggregation. These will be filled in
-       * based on the View specification.
-       * </pre>
-       *
-       * <code>repeated .google.instrumentation.Tag tags = 2;</code>
-       */
-      public Builder clearTags() {
-        if (tagsBuilder_ == null) {
-          tags_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000002);
-          onChanged();
-        } else {
-          tagsBuilder_.clear();
-        }
-        return this;
-      }
-      /**
-       * <pre>
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-      /**
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-      public Builder mergeIntervalView(com.google.instrumentation.stats.proto.CensusProto.IntervalView value) {
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-      "\035IntervalAggregationDescriptor\022\027\n\017n_sub_" +
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-      "\0132!.google.instrumentation.Timestamp\022.\n\003" +
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-      "tamp\"Q\n\014IntervalView\022A\n\014aggregations\030\001 \003" +
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-      "egation\"\247\001\n\004View\022\021\n\tview_name\030\001 \001(\t\022E\n\021d" +
-      "istribution_view\030\002 \001(\0132(.google.instrume" +
-      "ntation.DistributionViewH\000\022=\n\rinterval_v" +
-      "iew\030\003 \001(\0132$.google.instrumentation.Inter" +
-      "valViewH\000B\006\n\004viewB5\n&com.google.instrume" +
-      "ntation.stats.protoB\013CensusProtob\006proto3"
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diff --git a/services/src/main/proto/google/instrumentation/census.proto b/services/src/main/proto/google/instrumentation/census.proto
deleted file mode 100644
index 12c942d26..000000000
--- a/services/src/main/proto/google/instrumentation/census.proto
+++ /dev/null
@@ -1,317 +0,0 @@
-// Copyright 2017 The gRPC Authors
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//     http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// This is copied from https://github.com/google/instrumentation-proto/.
-// TODO(ericgribkoff) Sync this proto with grpc/grpc-proto.
-syntax = "proto3";
-
-package google.instrumentation;
-
-option java_package = "com.google.instrumentation.stats.proto";
-option java_outer_classname = "CensusProto";
-
-// All the census protos.
-//
-// Nomenclature notes:
-//   * Capitalized names below (like View) are protos.
-//   * Protos which describe types are named with a Descriptor suffix (e.g.
-//     MesurementDescriptor).
-//
-// Census lets you define the type and description of the data being measured
-// (e.g. the latency of an RPC or the number of CPU cycles spent on an
-// operation using MeasurementDescriptor. As individual measurements (a double
-// value) for are recorded, they are aggregated together into an
-// Aggregation. There are two Aggregation types available: Distribution
-// (describes the distribution of all measurements, possibly with a histogram)
-// and IntervalStats (the count and mean of measurements across specified time
-// periods). An Aggregation is described by an AggregationDescriptor.
-//
-// You can define how your measurements (described by a MeasurementDescriptor)
-// are broken down by Tag values and which Aggregations to use through a
-// ViewDescriptor. The output (all measurements broken down by tag values into
-// specific Aggregations) is called a View.
-
-
-// The following two types are copied from
-// google/protobuf/{duration,timestamp}.proto. Ideally, we would be able to
-// import them, but this causes compilation issues on C-based systems
-// (e.g. https://koti.kapsi.fi/jpa/nanopb/), which cannot process the C++
-// headers generated from the standard protobuf distribution. See the relevant
-// proto files for full documentation of these types.
-
-message Duration {
-  // Signed seconds of the span of time. Must be from -315,576,000,000
-  // to +315,576,000,000 inclusive.
-  int64 seconds = 1;
-
-  // Signed fractions of a second at nanosecond resolution of the span
-  // of time. Durations less than one second are represented with a 0
-  // `seconds` field and a positive or negative `nanos` field. For durations
-  // of one second or more, a non-zero value for the `nanos` field must be
-  // of the same sign as the `seconds` field. Must be from -999,999,999
-  // to +999,999,999 inclusive.
-  int32 nanos = 2;
-}
-
-message Timestamp {
-  // Represents seconds of UTC time since Unix epoch
-  // 1970-01-01T00:00:00Z. Must be from from 0001-01-01T00:00:00Z to
-  // 9999-12-31T23:59:59Z inclusive.
-  int64 seconds = 1;
-
-  // Non-negative fractions of a second at nanosecond resolution. Negative
-  // second values with fractions must still have non-negative nanos values
-  // that count forward in time. Must be from 0 to 999,999,999
-  // inclusive.
-  int32 nanos = 2;
-}
-
-// MeasurementDescriptor describes a data point (measurement) type.
-message MeasurementDescriptor {
-  // A descriptive name, e.g. rpc_latency, cpu. Must be unique.
-  string name = 1;
-
-  // More detailed description of the resource, used in documentation.
-  string description = 2;
-
-  // Fundamental units of measurement supported by Census
-  // TODO(aveitch): expand this to include other S.I. units?
-  enum BasicUnit {
-    UNKNOWN = 0;    // Implementations should not use this
-    SCALAR = 1;     // Dimensionless
-    BITS = 2;       // A single bit
-    BYTES = 3;      // An 8-bit byte
-    SECONDS = 4;    // S.I. unit
-    CORES = 5;      // CPU core usage
-    MAX_UNITS = 6;  // Last defined value; implementations should only use
-                    // this for validation.
-  }
-
-  // MeasurementUnit lets you build compound units of the form
-  //   10^n * (A * B * ...) / (X * Y * ...),
-  // where the elements in the numerator and denominator are all BasicUnits.  A
-  // MeasurementUnit must have at least one BasicUnit in its numerator.
-  //
-  // To specify multiplication in the numerator or denominator, simply specify
-  // multiple numerator or denominator fields.  For example:
-  //
-  // - byte-seconds (i.e. bytes * seconds):
-  //     numerator: BYTES
-  //     numerator: SECS
-  //
-  // - events/sec^2 (i.e. rate of change of events/sec):
-  //     numerator: SCALAR
-  //     denominator: SECS
-  //     denominator: SECS
-  //
-  // To specify multiples (in power of 10) of units, specify a non-zero
-  // 'power10' value, for example:
-  //
-  // - MB/s (i.e. megabytes / s):
-  //     power10: 6
-  //     numerator: BYTES
-  //     denominator: SECS
-  //
-  // - nanoseconds
-  //     power10: -9
-  //     numerator: SECS
-  message MeasurementUnit {
-    int32 power10 = 1;
-    repeated BasicUnit numerators = 2;
-    repeated BasicUnit denominators = 3;
-  }
-
-  // The units used by this type of measurement.
-  MeasurementUnit unit = 3;
-}
-
-// An aggregation summarizes a series of individual measurements. There are
-// two types of aggregation (IntervalAggregation and DistributionAggregation),
-// unique types of each can be set using descriptors for each.
-
-// DistributionAggregation contains summary statistics for a population of
-// values and, optionally, a histogram representing the distribution of those
-// values across a specified set of histogram buckets, as defined in
-// DistributionAggregationDescriptor.bucket_bounds.
-//
-// The summary statistics are the count, mean, minimum, and the maximum of the
-// set of population of values.
-//
-// Although it is not forbidden, it is generally a bad idea to include
-// non-finite values (infinities or NaNs) in the population of values, as this
-// will render the `mean` field meaningless.
-message DistributionAggregation {
-  // The number of values in the population. Must be non-negative.
-  int64 count = 1;
-
-  // The arithmetic mean of the values in the population. If `count` is zero
-  // then this field must be zero.
-  double mean = 2;
-
-  // The sum of the values in the population.  If `count` is zero then this
-  // field must be zero.
-  double sum = 3;
-
-  // Describes a range of population values.
-  message Range {
-    // The minimum of the population values.
-    double min = 1;
-    // The maximum of the population values.
-    double max = 2;
-  }
-
-  // The range of the population values. If `count` is zero, this field will not
-  // be defined.
-  Range range = 4;
-
-  // A Distribution may optionally contain a histogram of the values in the
-  // population. The histogram is given in `bucket_count` as counts of values
-  // that fall into one of a sequence of non-overlapping buckets, as described
-  // by `DistributionAggregationDescriptor.bucket_boundaries`. The sum of the
-  // values in `bucket_counts` must equal the value in `count`.
-  //
-  // Bucket counts are given in order under the numbering scheme described
-  // above (the underflow bucket has number 0; the finite buckets, if any,
-  // have numbers 1 through N-2; the overflow bucket has number N-1).
-  //
-  // The size of `bucket_count` must be no greater than N as defined in
-  // `bucket_boundaries`.
-  //
-  // Any suffix of trailing zero bucket_count fields may be omitted.
-  repeated int64 bucket_counts = 5;
-
-  // Tags associated with this DistributionAggregation. These will be filled
-  // in based on the View specification.
-  repeated Tag tags = 6;
-}
-
-message DistributionAggregationDescriptor {
-  // A Distribution may optionally contain a histogram of the values in the
-  // population. The bucket boundaries for that histogram are described by
-  // `bucket_bounds`. This defines `size(bucket_bounds) + 1` (= N)
-  // buckets. The boundaries for bucket index i are:
-  //
-  // [-infinity, bucket_bounds[i]) for i == 0
-  // [bucket_bounds[i-1], bucket_bounds[i]) for 0 < i < N-2
-  // [bucket_bounds[i-1], +infinity) for i == N-1
-  //
-  // i.e. an underflow bucket (number 0), zero or more finite buckets (1
-  // through N - 2, and an overflow bucket (N - 1), with inclusive lower
-  // bounds and exclusive upper bounds.
-  //
-  // If `bucket_bounds` has no elements (zero size), then there is no
-  // histogram associated with the Distribution. If `bucket_bounds` has only
-  // one element, there are no finite buckets, and that single element is the
-  // common boundary of the overflow and underflow buckets. The values must
-  // be monotonically increasing.
-  repeated double bucket_bounds = 1;
-}
-
-// An IntervalAggreation records summary stats over various time
-// windows. These stats are approximate, with the degree of accuracy
-// controlled by setting the n_sub_intervals parameter in the
-// IntervalAggregationDescriptor.
-message IntervalAggregation {
-  // Summary statistic over a single time interval.
-  message Interval {
-    // The interval duration. Must be positive.
-    Duration interval_size = 1;
-    // Approximate number of measurements recorded in this interval.
-    double count = 2;
-    // The cumulative sum of measurements in this interval.
-    double sum = 3;
-  }
-
-  // Full set of intervals for this aggregation.
-  repeated Interval intervals = 1;
-
-  // Tags associated with this IntervalAggregation. These will be filled in
-  // based on the View specification.
-  repeated Tag tags = 2;
-}
-
-// An IntervalAggreationDescriptor specifies time intervals for an
-// IntervalAggregation.
-message IntervalAggregationDescriptor {
-  // Number of internal sub-intervals to use when collecting stats for each
-  // interval. The max error in interval measurements will be approximately
-  // 1/n_sub_intervals (although in practice, this will only be approached in
-  // the presence of very large and bursty workload changes), and underlying
-  // memory usage will be roughly proportional to the value of this
-  // field. Must be in the range [2, 20]. A value of 5 will be used if this is
-  // unspecified.
-  int32 n_sub_intervals = 1;
-
-  // The size of each interval, as a time duration. Must have at least one
-  // element.
-  repeated Duration interval_sizes = 2;
-}
-
-// A Tag: key-value pair.
-message Tag {
-  string key = 1;
-  string value = 2;
-}
-
-// A ViewDescriptor specifies an AggregationDescriptor and a set of tag
-// keys. Views instantiated from this descriptor will contain Aggregations
-// broken down by the unique set of matching tag values for each measurement.
-message ViewDescriptor {
-  // Name of view. Must be unique.
-  string name = 1;
-
-  // More detailed description, for documentation purposes.
-  string description = 2;
-
-  // Name of a MeasurementDescriptor to be used for this view.
-  string measurement_descriptor_name = 3;
-
-  // Aggregation type to associate with View.
-  oneof aggregation {
-    IntervalAggregationDescriptor interval_aggregation = 4;
-    DistributionAggregationDescriptor distribution_aggregation = 5;
-  }
-
-  // Tag keys to match with a given measurement. If no keys are specified,
-  // then all stats are recorded. Keys must be unique.
-  repeated string tag_keys = 6;
-}
-
-// DistributionView contains all aggregations for a view specified using a
-// DistributionAggregationDescriptor.
-message DistributionView {
-  // Aggregations - each will have a unique set of tag values for the tag_keys
-  // associated with the corresponding View.
-  repeated DistributionAggregation aggregations = 1;
-
-  // Start and end timestamps over which aggregations was accumulated.
-  Timestamp start = 2;
-  Timestamp end = 3;
-}
-
-// IntervalView contains all aggregations for a view specified using a
-// IntervalAggregationDescriptor.
-message IntervalView {
-  // Aggregations - each will have a unique set of tag values for the tag_keys
-  // associated with the corresponding View.
-  repeated IntervalAggregation aggregations = 1;
-}
-
-// A View contains the aggregations based on a ViewDescriptor.
-message View {
-  // ViewDescriptor name associated with this set of View.
-  string view_name = 1;
-
-  oneof view {
-    DistributionView distribution_view = 2;
-    IntervalView interval_view = 3;
-  }
-}