public Builder setExecution(
        com.google.cloud.workflows.executions.v1beta.Execution.Builder builderForValue) {
      if (executionBuilder_ == null) {
        execution_ = builderForValue.build();
      } else {
        executionBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Required. Execution to be created.
</pre>

<code>
.google.cloud.workflows.executions.v1beta.Execution execution = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-workflow-executions/proto-google-cloud-workflow-executions-v1beta/src/main/java/com/google/cloud/workflows/executions/v1beta/CreateExecutionRequest.java