Definition disp_2cell_struct {C : prebicat_1_id_comp_cells} (D : disp_cat_ob_mor C) : UU := ∏ (c c' : C) (f g : C⟦c,c'⟧) (x : f ==> g) (d : D c) (d' : D c') (f' : d -->[f] d') (g' : d -->[g] d'), UU.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Total. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations. Require Import UniMath.Bicategories.Core.Invertible_2cells. Require Import UniMath.Bicategories.Core.BicategoryLaws. Require Import UniMath.Bicategories.Core.Unitors. Require Import UniMath.Bicategories.Morphisms.Adjunctions. Require Import UniMath.Bicategories.Core.Univalence.