'Return the help message for this command and this caller.
By default, return self.__doc__ (the docstring just under
the class definition).  You can override this behavior,
though, and even customize it depending on the caller, or other
commands the caller can use.
Args:
caller (Object or Player): the caller asking for help on the command.
cmdset (CmdSet): the command set (if you need additional commands).
Returns:
docstring (str): the help text to provide the caller for this command.'

def get_help(self, caller, cmdset):

    return self.__doc__
