code: def split_addrs(addrs):
      '''Split addresses into dictionaries by hosts and ports.
  
      :param list addrs: A list of addresses.
  
      :returns:
          A dictionary of dictionaries, where ``dict[HOST][PORT]`` holds a list
          of all agent addresses in that environment.
      '''
      splitted = {}
      for addr in addrs:
          host, port, _ = _addr_key(addr)
          if host not in splitted:
              splitted[host] = {}
          if port not in splitted[host]:
              splitted[host][port] = []
          splitted[host][port].append(addr)
      return splittef split_addrs(addrs):
      '''Split addresses into dictionaries by hosts and ports.
  
      :param list addrs: A list of addresses.
  
      :returns:
          A dictionary of dictionaries, where ``dict[HOST][PORT]`` holds a list
          of all agent addresses in that environment.
      '''
      splitted = {}
      for addr in addrs:
          host, port, _ = _addr_key(addr)
          if host not in splitted:
              splitted[host] = {}
          if port not in splitted[host]:
              splitted[host][port] = []
          splitted[host][port].append(addr)
      return splitted
docs: Split addresses into dictionaries by hosts and ports.
  
      :param list addrs: A list of addresses.
  
      :returns:
          A dictionary of dictionaries, where ``dict[HOST][PORT]`` holds a list
          of all agent addresses in that environment.