How to use the circuits.Event.create function in circuits

def test_firewall_receive(app_firewall, watcher):
    # good event
    packet = str.encode(dump_event(return_value(), 1))
    app_firewall.protocol.add_buffer(packet)
    assert watcher.wait('return_value')

    # bad name
    packet = str.encode(dump_event(Event.create('unallow_event'), 1))
    app_firewall.protocol.add_buffer(packet)
    assert watcher.wait('firewall_block')

    # bad channel
    event = return_value()
    event.channels = ('prohibits_channel',)
    packet = str.encode(dump_event(event, 1))
    app_firewall.protocol.add_buffer(packet)
    assert watcher.wait('firewall_block')

def started(self, component):
        """started Event handler

        Setup a simple timer to fire every second.
        """

        # Timer(seconds, event, persist=False)
        Timer(1, Event.create("timerevent"),persist=True).register(self)

def started(self, component):
        print("started")
        Timer(20, Event.create("end")).register(self)
        # Fire some test events
        N = 3
        for loop in range(1, N):
            self.fire(ActionMessage(source="test_thing", headers=None, message={"who": "you"}))
            Timer(1, ActionMessage(source="test_thing", headers=None, message={"who": "me"})).register(self)
            Timer(2, ActionMessage(source="test_thing", headers=None, message={"who": "us"})).register(self)

def started(self, component):
        x = yield self.call(Event.create("hello"))
        print(x)
        self.stop()

def started(self, component):
        """started Event handler

        Setup 3 timers at 5, 1 and 3 seconds.
        The 2nd two timers are persitent meaning that
        they are fired repeatedly every 1 and 3 seconds
        respectively.
        """

        # Timer(seconds, event, persist=False)
        Timer(5, Event.create("hello")).register(self)
        Timer(1, Event.create("foo"), persist=True).register(self)
        Timer(3, Event.create("bar"), persist=True).register(self)

def started(self, component):
        # x = yield self.call(task(factorial, 10))
        Timer(1, Event.create("foo"), persist=True).register(self)
        self.fire(task(download_web_page, 'http://www.slickdeals.net'))  # async
        self.fire(task(download_web_page, 'http://www.google.com'))  # async
        self.fire(task(download_web_page, 'http://www.yahoo.com'))  # async

def disconnected(self, event, *args, **kwargs):
        # Wait a while then try to reconnect
        LOG.info("We got disconnected, reconnect")
        Timer(10, Event.create("reconnect")).register(self)

def started(self, component):
        """started Event handler

        Setup 3 timers at 5, 1 and 3 seconds.
        The 2nd two timers are persitent meaning that
        they are fired repeatedly every 1 and 3 seconds
        respectively.
        """

        # Timer(seconds, event, persist=False)
        Timer(5, Event.create("hello")).register(self)
        Timer(1, Event.create("foo"), persist=True).register(self)
        Timer(3, Event.create("bar"), persist=True).register(self)

def started(self, component):
        Timer(1, Event.create("foo"), persist=True).register(self)
        x = yield self.call(task(factorial, 10))
        print("{0:d}".format(x.value))
        self.stop()

def started(self, component):
        """started Event handler

        Setup 3 timers at 5, 1 and 3 seconds.
        The 2nd two timers are persitent meaning that
        they are fired repeatedly every 1 and 3 seconds
        respectively.
        """

        # Timer(seconds, event, persist=False)
        Timer(5, Event.create("hello")).register(self)
        Timer(1, Event.create("foo"), persist=True).register(self)
        Timer(3, Event.create("bar"), persist=True).register(self)