∀ {data name : Array Lean.Json} {length : ℕ} {data_1 name_1 : Array Lean.Json} {length_1 : ℕ},
  { data := data, name := name, length := length } = { data := data_1, name := name_1, length := length_1 } →
    data = data_1 ∧ name = name_1 ∧ length = length_1