@abc.abstractmethod<EOL><INDENT>def match_any_principal_credit_string(self, match):<DEDENT>
pass<EOL>
Matches a principal credit string that has any value.

        :param match: ``true`` to match assets with any principal credit string, ``false`` to match assets with no principal credit string
        :type match: ``boolean``


        *compliance: mandatory -- This method must be implemented.*