∀ {id : Lean.JsonRpc.RequestID} {code : Lean.JsonRpc.ErrorCode} {message : String} {data? : Option Lean.Json}
  {id_1 : Lean.JsonRpc.RequestID} {code_1 : Lean.JsonRpc.ErrorCode} {message_1 : String} {data?_1 : Option Lean.Json},
  Lean.JsonRpc.MessageMetaData.responseError id code message data? =
      Lean.JsonRpc.MessageMetaData.responseError id_1 code_1 message_1 data?_1 →
    id = id_1 ∧ code = code_1 ∧ message = message_1 ∧ data? = data?_1