DESCRIPTION¶
If flag is not given or 0: return the string or closure which was last set as error message for this command (with notify_fail(E)).
If flag is given and 1: return the object which issued the last notify_fail(E).
If nothing was set yet, return 0.
SEE ALSO¶
add_action(E), query_verb(E), query_command(E), notify_fail(E), hook