public com.google.cloud.workstations.v1beta.WorkstationConfigOrBuilder
        getWorkstationConfigOrBuilder() {
      if (workstationConfigBuilder_ != null) {
        return workstationConfigBuilder_.getMessageOrBuilder();
      } else {
        return workstationConfig_ == null
            ? com.google.cloud.workstations.v1beta.WorkstationConfig.getDefaultInstance()
            : workstationConfig_;
      }
    }
<pre>
Required. Config to update.
</pre>

<code>
.google.cloud.workstations.v1beta.WorkstationConfig workstation_config = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-workstations/proto-google-cloud-workstations-v1beta/src/main/java/com/google/cloud/workstations/v1beta/UpdateWorkstationConfigRequest.java