anchor.diff:  	t_bif_map_find/1,
   	t_bif_map_is_key/1,
   	t_bif_map_keys/1,
  +	t_bif_map_merge/1,
   	t_bif_map_new/1,
   	t_bif_map_put/1,
   	t_bif_map_remove/1,
  +	t_bif_map_update/1,
   	t_bif_map_values/1,
   	t_bif_map_to_list/1,
   	t_bif_map_from_list/1,
  
positive.code: 	    {<<"hi">>,v6}, {{hi,3},v10},{"hi",v11}, {hi,v9}, {3,v8}]),
  
      %% error cases
      {'EXIT', {badarg,_}} = (catch maps:from_list(id(a))),
      {'EXIT', {badarg,_}} = (catch maps:from_list(id(42))),
      ok.
  
negative.code:      ok.
  
  t_bif_map_remove(Config) when is_list(Config) ->
      0  = erlang:map_size(maps:remove(some_key, #{})),
  
      M0 = #{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
  	4 => number, 18446744073709551629 => wat},
  
  