@java.lang.Override
      public com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig.PayloadFormat
          getPayloadFormat() {
        com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig.PayloadFormat result =
            com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig.PayloadFormat
                .forNumber(payloadFormat_);
        return result == null
            ? com.google.storagetransfer.v1.proto.TransferTypes.NotificationConfig.PayloadFormat
                .UNRECOGNIZED
            : result;
      }
<pre>
Required. The desired format of the notification message payloads.
</pre>

<code>
.google.storagetransfer.v1.NotificationConfig.PayloadFormat payload_format = 3 [(.google.api.field_behavior) = REQUIRED];
</code>

@return The payloadFormat.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java