.. efun:: int query_mccp()
  int query_mccp(object player)
  :optional:

  This efun returns current whether the client uses compression or not ( default ``this_player()`` ).

  You will get either :macro:`TELOPT_COMPRESS` or :macro:`TELOPT_COMPRESS2` if the connection is compressed, or 0 if it isn't.

  Available only if the driver is compiled with :topic:`MCCP` enabled; :macro:`__MCCP__` is defined in that case.

  :history 3.3.447 introduced:
  :history 3.2.10 backported:

  .. seealso:: :efun:`end_mccp_compress`, :efun:`start_mccp_compress`, :efun:`query_mccp_stats`, :concept:`mccp`