void () { doMultiFileTest(); doTestByText(""" from typing_extensions import final @final class A: pass class <warning descr="'A' is marked as '@final' and should not be subclassed">B</warning>(A): pass"""); doTestByText(""" from typing_extensions import final @final class A: pass @final class B: pass class <warning descr="'A', 'B' are marked as '@final' and should not be subclassed">C</warning>(A, B): pass"""); }