∀ {B : Type u₁} [inst : CategoryTheory.Bicategory B] {C : Type u₂} [inst_1 : CategoryTheory.Bicategory C]
  (F : CategoryTheory.Pseudofunctor B C) {a b : B} (f : a ⟶ b),
  CategoryTheory.Bicategory.whiskerRight (F.mapId a).inv (F.map f) =
    CategoryTheory.CategoryStruct.comp (CategoryTheory.Bicategory.leftUnitor (F.map f)).hom
      (CategoryTheory.CategoryStruct.comp (F.map₂ (CategoryTheory.Bicategory.leftUnitor f).inv)
        (F.mapComp (CategoryTheory.CategoryStruct.id a) f).hom)