public static LEVEL forNumber(int value) {
      switch (value) {
        case 0: return C1;
        case 1: return C2;
        case 2: return C3;
        default: return null;
      }
    }
@param value The numeric wire value of the corresponding enum entry.
@return The enum associated with the given numeric wire value.
core/src/test/java/com/alibaba/fastjson2/dubbo/GoogleProtobufBasic.java