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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 reset_all_to_flows(self, force=False):
 """ Resets the IOSystem and all extensions to absolute flows This method calls reset_to_flows for the IOSystem and for all Extensions in the system. Parameters force: boolean, optional If True, reset to flows although the system can not be recalculated. Default: False """

        self.reset_to_flows(force=force)
        [ee.reset_to_flows(force=force)
         for ee in self.get_extensions(data=True)]
        self.meta._add_modify("Reset full system to absolute flows")
        return self