(self, match_fn)
Set a matcher function on self so that objects can be tested against it.
Set a matcher function on self so that objects can be tested against it.
Set a matcher function on self so that objects can be tested against it .
def __init__(self, match_fn):
        """
        Set a matcher function on self so that objects can be tested against it.
        """
        self._match_fn = match_fn
def __init__ ( self , match_fn ) : self . _match_fn = match_fn