code: def postinit(self, items=None, body=None, type_annotation=None):
          
          self.items = items
          self.body = body
          self.type_annotation = type_annotation
docs: Do some setup after initialisation.
  
          :param items: The pairs of context managers and the names
              they are assigned to.
          :type items: list(tuple(NodeNG, AssignName or None)) or None
  
          :param body: The contents of the ``with`` block.
          :type body: list(NodeNG) or None