code: async def monitor_start(self, monitor):
          '''Create the socket listening to the ``bind`` address.
  
          If the platform does not support multiprocessing sockets set the
          number of workers to 0.
          '''
          cfg = self.cfg
          if (not platform.has_multiprocessing_socket or
                  cfg.concurrency == 'thread'):
              cfg.set('workers', 0)
          servers = await self.binds(monitor)
          if not servers:
              raise ImproperlyConfigured('Could not open a socket. '
                                         'No address to bind to')
          addresses = []
          for server in servers.values():
              addresses.extend(server.addresses)
          self.cfg.addresses = addresseync def monitor_start(self, monitor):
          '''Create the socket listening to the ``bind`` address.
  
          If the platform does not support multiprocessing sockets set the
          number of workers to 0.
          '''
          cfg = self.cfg
          if (not platform.has_multiprocessing_socket or
                  cfg.concurrency == 'thread'):
              cfg.set('workers', 0)
          servers = await self.binds(monitor)
          if not servers:
              raise ImproperlyConfigured('Could not open a socket. '
                                         'No address to bind to')
          addresses = []
          for server in servers.values():
              addresses.extend(server.addresses)
          self.cfg.addresses = addresses
docs: Create the socket listening to the ``bind`` address.
  
          If the platform does not support multiprocessing sockets set the
          number of workers to 0.