docs: async def set_gs(self, mgr_addr, gs):
          '''Set grid size for :py:class:`GridEnvironment` which manager is in
          given address.
  
          :param str mgr_addr: Address of the manager agent
  
          :param gs:
              New grid size of the grid environment, iterable with length 2.
          '''
          remote_manager = await self.env.connect(mgr_addr)
          await remote_manager.set_gs(gs)