def _tick(self):
        """Called once per machine tick.

        Checks the current list of active timed switches to see if it's
        time to take action on any of them. If so, does the callback and then
        removes that entry from the list.

        """

        for k in self.active_timed_switches.keys():
            if k <= time.time():  # change to generator?
                for entry in self.active_timed_switches[k]:
                    if entry['removed']:
                        continue
                    self.log.debug(
                        "Processing timed switch handler. Switch: %s "
                        " State: %s, ms: %s", entry['switch_name'],
                        entry['state'], entry['ms'])
                    if entry['return_info']:
                        entry['callback'](switch_name=entry['switch_name'],
                                          state=entry['state'],
                                          ms=entry['ms'],
                                          **entry['callback_kwargs'])
                    else:
                        entry['callback'](**entry['callback_kwargs'])
                del self.active_timed_switches[k]

# The MIT License (MIT)

# Copyright (c) 2013-2015 Brian Madden and Gabe Knuth

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
dataset/ETHPy150Open missionpinball/mpf/mpf/system/switch_controller.py/SwitchController._tick/original