def get_assessment_id(self):
<EOL>if not bool(self._my_map['<STR_LIT>']):<EOL><INDENT>raise errors.IllegalState('<STR_LIT>')<EOL><DEDENT>return Id(self._my_map['<STR_LIT>'])<EOL>
Gets the assessment ``Id`` corresponding to this assessment offering.

        return: (osid.id.Id) - the assessment id
        *compliance: mandatory -- This method must be implemented.*