@Override
  public void visitPyYieldExpression(@NotNull PyYieldExpression node) {
    super.visitPyYieldExpression(node);
    if (!node.isDelegating()) {
      return;
    }
    registerForAllMatchingVersions(level -> level.isPython2() && registerForLanguageLevel(level),
                                   PyPsiBundle.message("INSP.compatibility.feature.support.yield.from"),
                                   node);
  }
@Override
  public void visitPyYieldExpression(@NotNull PyYieldExpression node)