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How to use catch_misses method in keyboard

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__init__.py

Source:__init__.py

...551    state.remove_last_step = None552    state.suppressed_events = []553    state.last_update = float('-inf')554    555    def catch_misses(event, force_fail=False):556        if (557                event.event_type == event_type558                and state.index559                and event.scan_code not in allowed_keys_by_step[state.index]560            ) or (561                timeout562                and _time.monotonic() - state.last_update >= timeout563            ) or force_fail: # Weird formatting to ensure short-circuit.564            state.remove_last_step()565            for event in state.suppressed_events:566                if event.event_type == KEY_DOWN:567                    press(event.scan_code)568                else:569                    release(event.scan_code)570            del state.suppressed_events[:]571            index = 0572            set_index(0)573        return True574    def set_index(new_index):575        state.index = new_index576        if new_index == 0:577            # This is done for performance reasons, avoiding a global key hook578            # that is always on.579            state.remove_catch_misses = lambda: None580        elif new_index == 1:581            state.remove_catch_misses()582            # Must be `suppress=True` to ensure `send` has priority.583            state.remove_catch_misses = hook(catch_misses, suppress=True)584        if new_index == len(steps) - 1:585            def handler(event):586                if event.event_type == KEY_UP:587                    remove()588                    set_index(0)589                accept = event.event_type == event_type and callback() 590                if accept:591                    return catch_misses(event, force_fail=True)592                else:593                    state.suppressed_events[:] = [event]594                    return False595            remove = _add_hotkey_step(handler, steps[state.index], suppress)596        else:597            # Fix value of next_index.598            def handler(event, new_index=state.index+1):599                if event.event_type == KEY_UP:600                    remove()601                    set_index(new_index)602                state.suppressed_events.append(event)603                return False604            remove = _add_hotkey_step(handler, steps[state.index], suppress)605        state.remove_last_step = remove606        state.last_update = _time.monotonic()607        return False608    set_index(0)609    allowed_keys_by_step = [610        set().union(*step)611        for step in steps612    ]613    def remove_():614        state.remove_catch_misses()615        state.remove_last_step()616        del _hotkeys[hotkey]617        del _hotkeys[remove_]618        del _hotkeys[callback]619    # TODO: allow multiple callbacks for each hotkey without overwriting the620    # remover.621    _hotkeys[hotkey] = _hotkeys[remove_] = _hotkeys[callback] = remove_622    return remove_623register_hotkey = add_hotkey624def remove_hotkey(hotkey_or_callback):625    """626    Removes a previously hooked hotkey. Must be called wtih the value returned627    by `add_hotkey`.628    """...

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