code: def visit_raise(self, node, parent):
          
          newnode = nodes.Raise(node.lineno, node.col_offset, parent)
          # pylint: disable=too-many-function-args
          newnode.postinit(
              _visit_or_none(node, "type", self, newnode),
              _visit_or_none(node, "inst", self, newnode),
              _visit_or_none(node, "tback", self, newnode),
          )
          return newnode
docs: visit a Raise node by returning a fresh instance of it