private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.visionai.v1.Collection,
            com.google.cloud.visionai.v1.Collection.Builder,
            com.google.cloud.visionai.v1.CollectionOrBuilder>
        getCollectionsFieldBuilder() {
      if (collectionsBuilder_ == null) {
        collectionsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.visionai.v1.Collection,
                com.google.cloud.visionai.v1.Collection.Builder,
                com.google.cloud.visionai.v1.CollectionOrBuilder>(
                collections_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
        collections_ = null;
      }
      return collectionsBuilder_;
    }
<pre>
The collections from the specified corpus.
</pre>

<code>repeated .google.cloud.visionai.v1.Collection collections = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ListCollectionsResponse.java