<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def handle_input(self, event):
 """Process they keyboard input."""

        self.update_timeval()
        self.events = []
        code = self._get_event_key_code(event)

        if code in self.codes:
            new_code = self.codes[code]
        else:
            new_code = 0
        event_type = self._get_event_type(event)
        value = self._get_key_value(event, event_type)
        scan_event, key_event = self.emulate_press(
            new_code, code, value, self.timeval)

        self.events.append(scan_event)
        self.events.append(key_event)
        # End with a sync marker
        self.events.append(self.sync_marker(self.timeval))
        # We are done
        self.write_to_pipe(self.events)