def get_cache_time(self, path, modified, mime_type):
        """Override to customize cache control behavior.

        Return a positive number of seconds to make the result
        cacheable for that amount of time or 0 to mark resource as
        cacheable for an unspecified amount of time (subject to
        browser heuristics).

        By default returns cache expiry of 10 years for resources requested
        with ``v`` argument.
        """
        return self.CACHE_MAX_AGE if "v" in self.request.arguments else 0
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/web.py/StaticFileHandler.get_cache_time/original