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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def disable_tracing(self):
 """ Disable tracing if it is disabled and debugged program is running, else do nothing. :return: False if tracing has been disabled, True else. """

        _logger.x_debug("disable_tracing()")
        #self.dump_tracing_state("before disable_tracing()")
        if self.tracing_enabled and self.execution_started:
            threading.settrace(None)  # don't trace threads to come
            iksettrace3._set_trace_off()
            self.tracing_enabled = False
        #self.dump_tracing_state("after disable_tracing()")
        return self.tracing_enabled