@utilities.arguments_not_none<EOL><INDENT>def get_hierarchy_record(self, hierarchy_record_type):<DEDENT>
raise errors.Unimplemented()<EOL>
Gets the hierarchy record corresponding to the given ``Hierarchy`` record ``Type``.

        This method is used to retrieve an object implementing the
        requested record. The ``hierarchy_record_type`` may be the
        ``Type`` returned in ``get_record_types()`` or any of its
        parents in a ``Type`` hierarchy where
        ``has_record_type(hierarchy_record_type)`` is ``true`` .

        arg:    hierarchy_record_type (osid.type.Type): the type of the
                record to retrieve
        return: (osid.hierarchy.records.HierarchyRecord) - the hierarchy
                record
        raise:  NullArgument - ``hierarchy_record_type`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  Unsupported - ``has_record_type(hierarchyrecord_type)``
                is ``false``
        *compliance: mandatory -- This method must be implemented.*