[result]
def MyOption.isSomeWithInstance._at.isSomeWithInstanceNat._spec_1 (x_1 : @& obj) : u8 :=
  case x_1 : obj of
  MyOption.none →
    let x_2 : u8 := 0;
    ret x_2
  MyOption.some →
    let x_3 : u8 := 1;
    ret x_3
def isSomeWithInstanceNat (x_1 : @& obj) : u8 :=
  let x_2 : usize := 0;
  let x_3 : obj := Array.uget ◾ x_1 x_2 ◾;
  let x_4 : u8 := MyOption.isSomeWithInstance._at.isSomeWithInstanceNat._spec_1 x_3;
  dec x_3;
  ret x_4
def MyOption.isSomeWithInstance._at.isSomeWithInstanceNat._spec_1._boxed (x_1 : obj) : obj :=
  let x_2 : u8 := MyOption.isSomeWithInstance._at.isSomeWithInstanceNat._spec_1 x_1;
  dec x_1;
  let x_3 : obj := box x_2;
  ret x_3
def isSomeWithInstanceNat._boxed (x_1 : obj) : obj :=
  let x_2 : u8 := isSomeWithInstanceNat x_1;
  dec x_1;
  let x_3 : obj := box x_2;
  ret x_3