'focus' => [qw(-force -lastfor)],
'pack' => [qw(configure forget info propagate slaves)],
'grid' => [qw(bbox columnconfigure configure forget info location propagate rowconfigure size slaves)],
'focus' => [qw(-force -lastfor)],
'pack' => [qw(configure forget info propagate slaves)],
'grid' => [qw(bbox columnconfigure configure forget info location propagate rowconfigure size slaves)],