def METHOD_NAME(font, master):
    for glyph in font.glyphs:
        for layer in glyph.layers:
            if (
                layer.layerId != master.id
                or layer.associatedMasterId != master.id
                or not layer.hints
            ):
                continue
            if any(h.type.upper() == "CORNER" for h in layer.hints):
                return True
    return False