(α₁ : Type w) →
  (m : Type w → Type w') →
    {β₁ : Type w} →
      {inst : Std.Iterator α₁ m β₁} →
        (α₂ β₂ : Type w) →
          [SizeOf α₁] →
            [(a : Type w) → SizeOf (m a)] →
              [SizeOf β₁] → [SizeOf α₂] → [SizeOf β₂] → SizeOf (Std.Iterators.Types.Zip α₁ m α₂ β₂)