public Builder clearHypernym() {
      hypernym_ = getDefaultInstance().getHypernym();
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }
<pre>
Optional. The hypernym.
</pre>

<code>string hypernym = 2 [(.google.api.field_behavior) = OPTIONAL];</code>

@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/SearchHypernym.java