public Builder clearEtag() {
      etag_ = getDefaultInstance().getEtag();
      bitField0_ = (bitField0_ & ~0x00000020);
      onChanged();
      return this;
    }
<pre>
Used to perform consistent read-modify-write updates. If not set, a blind
"overwrite" update happens.
</pre>

<code>string etag = 6;</code>

@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Endpoint.java