∀ {B : Type u} [inst : CategoryTheory.Bicategory B] {a b c : B} {f : b ⟶ a} {g : c ⟶ a}
  (hasInitial : CategoryTheory.Limits.HasInitial (CategoryTheory.Bicategory.LeftLift f g)),
  (∀ {x : B} (h : x ⟶ c), CategoryTheory.Bicategory.LanLift.CommuteWith f g h) →
    CategoryTheory.Bicategory.HasAbsLeftKanLift f g