def wrap_threading_start(start_func):
    """Wrap the start function from thread. Put the tracer informations in the
    threading object.
    """

    def call(self):
        self._opencensus_context = (
            execution_context.get_opencensus_full_context()
        )
        return start_func(self)

    return call
Wrap the start function from thread. Put the tracer informations in the
    threading object.