@utilities.arguments_not_none<EOL><INDENT>def delete_relationship(self, relationship_id):<DEDENT>
<EOL>collection = JSONClientValidated('<STR_LIT>',<EOL>collection='<STR_LIT>',<EOL>runtime=self._runtime)<EOL>if not isinstance(relationship_id, ABCId):<EOL><INDENT>raise errors.InvalidArgument('<STR_LIT>')<EOL><DEDENT>relationship_map = collection.find_one(<EOL>dict({'<STR_LIT>': ObjectId(relationship_id.get_identifier())},<EOL>**self._view_filter()))<EOL>objects.Relationship(osid_object_map=relationship_map, runtime=self._runtime, proxy=self._proxy)._delete()<EOL>collection.delete_one({'<STR_LIT>': ObjectId(relationship_id.get_identifier())})<EOL>
Deletes a ``Relationship``.

        arg:    relationship_id (osid.id.Id): the ``Id`` of the
                ``Relationship`` to remove
        raise:  NotFound - ``relationship_id`` not found
        raise:  NullArgument - ``relationship_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*