def match_credit_id(self, credit_id=None, match=None):
raise errors.Unimplemented()<EOL>
Matches an object that has the given credit.

        arg:    credit_id (osid.id.Id): a credit ``Id``
        arg:    match (boolean): ``true`` for a positive match,
                ``false`` for a negative match
        raise:  NullArgument - ``credit_id`` is ``null``
        *compliance: mandatory -- This method must be implemented.*