code: async def is_ready(self):
          
          async def slave_task(addr, timeout):
              try:
                  r_manager = await self.env.connect(addr, timeout=timeout)
                  ready = await r_manager.is_ready()
                  if not ready:
                      return False
              except:
                  return False
              return True
  
          if not self.env.is_ready():
              return False
          if not self.check_ready():
              return False
          rets = await create_tasks(slave_task, self.addrs, 0.5)
          if not all(rets):
              return False
          return True
docs: Check if the multi-environment has been fully initialized.
  
          This calls each slave environment managers' :py:meth:`is_ready` and
          checks if the multi-environment itself is ready by calling
          :py:meth:`~creamas.mp.MultiEnvironment.check_ready`.
  
          .. seealso::
  
              :py:meth:`creamas.core.environment.Environment.is_ready`