@java.lang.Override
            public com.google.protobuf.ByteString getStringBytes() {
                java.lang.Object ref = "";
                if (kindCase_ == 2) {
                    ref = kind_;
                }
                if (ref instanceof String) {
                    com.google.protobuf.ByteString b =
                            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
                    if (kindCase_ == 2) {
                        kind_ = b;
                    }
                    return b;
                } else {
                    return (com.google.protobuf.ByteString) ref;
                }
            }
<code>string string = 2;</code>

@return The bytes for string.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/notification/TurmsNotification.java