code: def _explode_shorthand_ip_string(self):
          
          if isinstance(self, IPv6Network):
              ip_str = str(self.network_address)
          elif isinstance(self, IPv6Interface):
              ip_str = str(self.ip)
          else:
              ip_str = str(self)
  
          ip_int = self._ip_int_from_string(ip_str)
          hex_str = '%032x' % ip_int
          parts = [hex_str[x:x+4] for x in range(0, 32, 4)]
          if isinstance(self, (_BaseNetwork, IPv6Interface)):
              return '%s/%d' % (':'.join(parts), self._prefixlen)
          return ':'.join(parts)
docs: Expand a shortened IPv6 address.
  
          Args:
              ip_str: A string, the IPv6 address.
  
          Returns:
              A string, the expanded IPv6 address.