public Builder setVerb(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      verb_ = value;
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }
<pre>
Name of the verb executed by the operation.
</pre>

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

@param value The verb to set.
@return This builder for chaining.
java-workflows/proto-google-cloud-workflows-v1/src/main/java/com/google/cloud/workflows/v1/OperationMetadata.java