public Builder clearWorkflowRevisionId() {
      workflowRevisionId_ = getDefaultInstance().getWorkflowRevisionId();
      bitField0_ = (bitField0_ & ~0x00000080);
      onChanged();
      return this;
    }
<pre>
Output only. Revision of the workflow this execution is using.
</pre>

<code>string workflow_revision_id = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return This builder for chaining.
java-workflow-executions/proto-google-cloud-workflow-executions-v1beta/src/main/java/com/google/cloud/workflows/executions/v1beta/Execution.java