∀ {α₂ γ : Type u_1} {m : Type u_1 → Type u_2} (motive : Option (Std.IterM m γ) → Sort u_3) (h_1 : Unit → motive none)
  (h_2 : (it₂ : Std.IterM m γ) → motive (some it₂)),
  (match none with
    | none => h_1 ()
    | some it₂ => h_2 it₂) =
    h_1 ()