def METHOD_NAME(self):
    font, _ = self.objectGenerator("font")
    groups = font.groups
    groups["public.kern1.X"] = ["A", "B", "C"]
    groups["public.kern2.X"] = ["A", "B", "C"]
    kerning = font.kerning
    kerning.update({
        ("public.kern1.X", "public.kern2.X"): 100,
        ("B", "public.kern2.X"): 101,
        ("public.kern1.X", "B"): 102,
        ("A", "A"): 103,
    })
    return kerning