public Builder setWorkflow(com.google.cloud.workflows.v1.Workflow.Builder builderForValue) {
      if (workflowBuilder_ == null) {
        workflow_ = builderForValue.build();
      } else {
        workflowBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Required. Workflow to be created.
</pre>

<code>
.google.cloud.workflows.v1.Workflow workflow = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-workflows/proto-google-cloud-workflows-v1/src/main/java/com/google/cloud/workflows/v1/CreateWorkflowRequest.java