@Override
  public void visitPyNonlocalStatement(final @NotNull PyNonlocalStatement node) {
    registerForAllMatchingVersions(level -> level.isPython2() && registerForLanguageLevel(level),
                                   PyPsiBundle.message("INSP.compatibility.feature.have.nonlocal.keyword"),
                                   node);
  }
@Override
  public void visitPyNonlocalStatement(final @NotNull PyNonlocalStatement node)