public Builder clearVerb() {
      verb_ = getDefaultInstance().getVerb();
      bitField0_ = (bitField0_ & ~0x00000008);
      onChanged();
      return this;
    }
<pre>
Name of the verb executed by the operation.
</pre>

<code>string verb = 4;</code>

@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java