@property<EOL><INDENT>def tracing(self):<DEDENT>
return self._tracing<EOL>
Runtime application trace level.

The runtime application trace level can be a string with value ``error``, ``warn``, ``info``,
``debug`` or ``trace``.

In addition a level from Python ``logging`` module can be used in with ``CRITICAL`` and ``ERROR`` mapping
to ``error``, ``WARNING`` to ``warn``, ``INFO`` to ``info`` and ``DEBUG`` to ``debug``.

Setting tracing to `None` or ``logging.NOTSET`` will result in the job submission using the Streams instance
application trace level.

The value of ``tracing`` is the level as a string (``error``, ``warn``, ``info``, ``debug`` or ``trace``)
or None.