@Nullable
  default PyAstExpression getResultExpression() {
    ASTNode[] exprs = getNode().getChildren(PythonDialectsTokenSetProvider.getInstance().getExpressionTokens());
    return exprs.length == 0 ? null : (PyAstExpression)exprs[0].getPsi();
  }
@Nullable
  default PyAstExpression getResultExpression()