@abc.abstractmethod<EOL><INDENT>def get_learning_path_session(self):<DEDENT>
return<EOL>
Gets the ``OsidSession`` associated with the learning path service.

        :return: a ``LearningPathSession``
        :rtype: ``osid.learning.LearningPathSession``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_learning_path()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_learning_path()`` is ``true``.*