How to use the pyregion._region_filter.Circle function in pyregion

xc, yc = shape.coord_list[:2]
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin
            r_list = shape.coord_list[2:]

            r1 = max(r_list)
            r2 = min(r_list)

            f = region_filter.Circle(xc, yc, r1) & ~region_filter.Circle(xc, yc, r2)

        elif shape.name == "circle":
            xc, yc, r = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f = region_filter.Circle(xc, yc, r)

        elif shape.name == "panda":
            xc, yc, a1, a2, an, r1, r2, rn = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Circle(xc, yc, r2) & ~region_filter.Circle(xc, yc, r1)
            f = f1 & region_filter.AngleRange(xc, yc, a1, a2)

        elif shape.name == "pie":
            xc, yc, r1, r2, a1, a2 = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Circle(xc, yc, r2) & ~region_filter.Circle(xc, yc, r1)
            f = f1 & region_filter.AngleRange(xc, yc, a1, a2)

f = region_filter.Circle(xc, yc, r1) & ~region_filter.Circle(xc, yc, r2)

        elif shape.name == "circle":
            xc, yc, r = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f = region_filter.Circle(xc, yc, r)

        elif shape.name == "panda":
            xc, yc, a1, a2, an, r1, r2, rn = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Circle(xc, yc, r2) & ~region_filter.Circle(xc, yc, r1)
            f = f1 & region_filter.AngleRange(xc, yc, a1, a2)

        elif shape.name == "pie":
            xc, yc, r1, r2, a1, a2 = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Circle(xc, yc, r2) & ~region_filter.Circle(xc, yc, r1)
            f = f1 & region_filter.AngleRange(xc, yc, a1, a2)

        elif shape.name == "epanda":
            xc, yc, a1, a2, an, r11, r12, r21, r22, rn, angle = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Ellipse(xc, yc, r21, r22) & ~region_filter.Ellipse(xc, yc, r11, r12)

f = region_filter.Rotated(f1, angle, xc, yc)
            else:
                w, h = maj_list[0], min_list[0]
                f = region_filter.Rotated(region_filter.Ellipse(xc, yc, w, h),
                                          angle, xc, yc)

        elif shape.name == "annulus":
            xc, yc = shape.coord_list[:2]
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin
            r_list = shape.coord_list[2:]

            r1 = max(r_list)
            r2 = min(r_list)

            f = region_filter.Circle(xc, yc, r1) & ~region_filter.Circle(xc, yc, r2)

        elif shape.name == "circle":
            xc, yc, r = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f = region_filter.Circle(xc, yc, r)

        elif shape.name == "panda":
            xc, yc, a1, a2, an, r1, r2, rn = shape.coord_list
            # -1 for change origin to 0,0
            xc, yc = xc - origin, yc - origin

            f1 = region_filter.Circle(xc, yc, r2) & ~region_filter.Circle(xc, yc, r1)
            f = f1 & region_filter.AngleRange(xc, yc, a1, a2)