(motive : List Mathlib.Notation3.DelabKey × Lean.TSyntax `term → Sort u_1) →
  (__discr : List Mathlib.Notation3.DelabKey × Lean.TSyntax `term) →
    ((keys : List Mathlib.Notation3.DelabKey) → (matchF : Lean.TSyntax `term) → motive (keys, matchF)) → motive __discr