code: def visit_listcomp(self, node, parent):
          
          newnode = nodes.ListComp(node.lineno, node.col_offset, parent)
          newnode.postinit(
              self.visit(node.elt, newnode),
              [self.visit(child, newnode) for child in node.generators],
          )
          return newnode
docs: visit a ListComp node by returning a fresh instance of it