public Builder clearEntityId() {
      entityId_ = getDefaultInstance().getEntityId();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
Opaque entity ID. Some IDs may be available in
[Google Knowledge Graph Search
API](https://developers.google.com/knowledge-graph/).
</pre>

<code>string entity_id = 1;</code>

@return This builder for chaining.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p1beta1/src/main/java/com/google/cloud/videointelligence/v1p1beta1/Entity.java