private void buildPartial0(
          com.google.cloud.vertexai.api.GenerateContentResponse.UsageMetadata result) {
        int from_bitField0_ = bitField0_;
        if (((from_bitField0_ & 0x00000001) != 0)) {
          result.promptTokenCount_ = promptTokenCount_;
        }
        if (((from_bitField0_ & 0x00000002) != 0)) {
          result.candidatesTokenCount_ = candidatesTokenCount_;
        }
        if (((from_bitField0_ & 0x00000004) != 0)) {
          result.totalTokenCount_ = totalTokenCount_;
        }
        if (((from_bitField0_ & 0x00000008) != 0)) {
          result.cachedContentTokenCount_ = cachedContentTokenCount_;
        }
      }
<pre>
Usage metadata about response(s).
</pre>

Protobuf type {@code google.cloud.vertexai.v1.GenerateContentResponse.UsageMetadata}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GenerateContentResponse.java