private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.workstations.v1.Workstation,
            com.google.cloud.workstations.v1.Workstation.Builder,
            com.google.cloud.workstations.v1.WorkstationOrBuilder>
        getWorkstationFieldBuilder() {
      if (workstationBuilder_ == null) {
        workstationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.workstations.v1.Workstation,
                com.google.cloud.workstations.v1.Workstation.Builder,
                com.google.cloud.workstations.v1.WorkstationOrBuilder>(
                getWorkstation(), getParentForChildren(), isClean());
        workstation_ = null;
      }
      return workstationBuilder_;
    }
<pre>
Required. Workstation to create.
</pre>

<code>
.google.cloud.workstations.v1.Workstation workstation = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-workstations/proto-google-cloud-workstations-v1/src/main/java/com/google/cloud/workstations/v1/CreateWorkstationRequest.java