private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getStartTimeFieldBuilder();
        getEndTimeFieldBuilder();
        getErrorFieldBuilder();
      }
    }
<pre>
A running instance of a [Workflow][google.cloud.workflows.v1beta.Workflow].
</pre>

Protobuf type {@code google.cloud.workflows.executions.v1beta.Execution}
java-workflow-executions/proto-google-cloud-workflow-executions-v1beta/src/main/java/com/google/cloud/workflows/executions/v1beta/Execution.java