@abc.abstractmethod<EOL><INDENT>def get_location_by_coordinate(self, coordinate):<DEDENT>
return<EOL>
Gets the closest bounding location of the given coordinate.

        :param coordinate: a coordinate
        :type coordinate: ``osid.mapping.Coordinate``
        :return: the returned ``Location``
        :rtype: ``osid.mapping.Location``
        :raise: ``NullArgument`` -- ``coordinate`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- coordinate not supported

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