@Override
            public final Builder mergeUnknownFields(
                    final com.google.protobuf.UnknownFieldSet unknownFields) {
                return super.mergeUnknownFields(unknownFields);
            }
<code>int32 field2 = 2;</code>

@return This builder for chaining.
wx-dump-admin/src/main/java/com/xcs/wx/protobuf/MsgProto.java