public Builder setWorkstationConfig(
        com.google.cloud.workstations.v1beta.WorkstationConfig value) {
      if (workstationConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        workstationConfig_ = value;
      } else {
        workstationConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<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