FRT_RPCRequest {
  method: echo
  error(0): No error
  params:
  FRT_Values {
    [bBhHiIlLfFdDsSxX]
    int8: 8
    int8_array {
      int8: 1
      int8: 2
      int8: 3
    }
    int16: 16
    int16_array {
      int16: 2
      int16: 4
      int16: 6
    }
    int32: 32
    int32_array {
      int32: 4
      int32: 8
      int32: 12
    }
    int64: 64
    int64_array {
      int64: 8
      int64: 16
      int64: 24
    }
    float: 32.500000
    float_array {
      float: 0.250000
      float: 0.500000
      float: 0.750000
    }
    double: 64.500000
    double_array {
      double: 0.100000
      double: 0.200000
      double: 0.300000
    }
    string: string
    string_array {
      string: str1
      string: str2
      string: str3
    }
    data: len=4
    data_array {
      data: len=4
      data: len=4
      data: len=4
    }
  }
  return:
  FRT_Values {
    [bBhHiIlLfFdDsSxX]
    int8: 8
    int8_array {
      int8: 1
      int8: 2
      int8: 3
    }
    int16: 16
    int16_array {
      int16: 2
      int16: 4
      int16: 6
    }
    int32: 32
    int32_array {
      int32: 4
      int32: 8
      int32: 12
    }
    int64: 64
    int64_array {
      int64: 8
      int64: 16
      int64: 24
    }
    float: 32.500000
    float_array {
      float: 0.250000
      float: 0.500000
      float: 0.750000
    }
    double: 64.500000
    double_array {
      double: 0.100000
      double: 0.200000
      double: 0.300000
    }
    string: string
    string_array {
      string: str1
      string: str2
      string: str3
    }
    data: len=4
    data_array {
      data: len=4
      data: len=4
      data: len=4
    }
  }
}
Return values == parameters.