public Builder mergeLoggingConfig(
        com.google.cloud.storagebatchoperations.v1.LoggingConfig value) {
      if (loggingConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000080) != 0)
            && loggingConfig_ != null
            && loggingConfig_
                != com.google.cloud.storagebatchoperations.v1.LoggingConfig.getDefaultInstance()) {
          getLoggingConfigBuilder().mergeFrom(value);
        } else {
          loggingConfig_ = value;
        }
      } else {
        loggingConfigBuilder_.mergeFrom(value);
      }
      if (loggingConfig_ != null) {
        bitField0_ |= 0x00000080;
        onChanged();
      }
      return this;
    }
<pre>
Optional. Logging configuration.
</pre>

<code>
.google.cloud.storagebatchoperations.v1.LoggingConfig logging_config = 9 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/Job.java