How to use the pyboy.utils.WindowEvent function in pyboy

self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_B))
            elif c == "z":
                self.events.append(WindowEvent(WindowEvent.STATE_SAVE))
            elif c == "x":
                self.events.append(WindowEvent(WindowEvent.STATE_LOAD))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.RELEASE_SPEED_UP))
            elif c == chr(8):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_SELECT))
            elif c == chr(13):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_START))
            elif c == "o":
                self.events.append(WindowEvent(WindowEvent.SCREENSHOT_RECORD))
        else:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_B))
            elif c == chr(27):
                self.events.append(WindowEvent(WindowEvent.QUIT))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.PRESS_SPEED_UP))
            elif c == "i":
                self.events.append(WindowEvent(WindowEvent.SCREEN_RECORDING_TOGGLE))
            elif c == chr(8):
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_SELECT))
            elif c == chr(13):
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_START))

def _glkeyboardspecial(self, c, x, y, up):
        if up:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_RIGHT))
        else:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_RIGHT))

def _glkeyboard(self, c, x, y, up):
        if up:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_B))
            elif c == "z":
                self.events.append(WindowEvent(WindowEvent.STATE_SAVE))
            elif c == "x":
                self.events.append(WindowEvent(WindowEvent.STATE_LOAD))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.RELEASE_SPEED_UP))
            elif c == chr(8):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_SELECT))
            elif c == chr(13):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_START))
            elif c == "o":
                self.events.append(WindowEvent(WindowEvent.SCREENSHOT_RECORD))
        else:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_B))
            elif c == chr(27):

def _glkeyboard(self, c, x, y, up):
        if up:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_B))
            elif c == "z":
                self.events.append(WindowEvent(WindowEvent.STATE_SAVE))
            elif c == "x":
                self.events.append(WindowEvent(WindowEvent.STATE_LOAD))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.RELEASE_SPEED_UP))
            elif c == chr(8):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_SELECT))
            elif c == chr(13):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_START))
            elif c == "o":
                self.events.append(WindowEvent(WindowEvent.SCREENSHOT_RECORD))
        else:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.PRESS_BUTTON_B))
            elif c == chr(27):
                self.events.append(WindowEvent(WindowEvent.QUIT))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.PRESS_SPEED_UP))
            elif c == "i":

if up:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_RIGHT))
        else:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_RIGHT))

def _glkeyboardspecial(self, c, x, y, up):
        if up:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.RELEASE_ARROW_RIGHT))
        else:
            if c == GLUT_KEY_UP:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_UP))
            if c == GLUT_KEY_DOWN:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_DOWN))
            if c == GLUT_KEY_LEFT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_LEFT))
            if c == GLUT_KEY_RIGHT:
                self.events.append(WindowEvent(WindowEvent.PRESS_ARROW_RIGHT))

def _glkeyboard(self, c, x, y, up):
        if up:
            if c == "a":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_A))
            elif c == "s":
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_B))
            elif c == "z":
                self.events.append(WindowEvent(WindowEvent.STATE_SAVE))
            elif c == "x":
                self.events.append(WindowEvent(WindowEvent.STATE_LOAD))
            elif c == " ":
                self.events.append(WindowEvent(WindowEvent.RELEASE_SPEED_UP))
            elif c == chr(8):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_SELECT))
            elif c == chr(13):
                self.events.append(WindowEvent(WindowEvent.RELEASE_BUTTON_START))
            elif c == "o":
                self.events.append(WindowEvent(WindowEvent.SCREENSHOT_RECORD))
        else:
            if c == "a":

def __init__(self, pyboy, observation_type="tiles", action_type="toggle", simultaneous_actions=False, **kwargs):
        # Build pyboy game
        self.pyboy = pyboy
        if str(type(pyboy)) != "":
            raise TypeError("pyboy must be a Pyboy object")

        # Build game_wrapper
        self.game_wrapper = pyboy.game_wrapper()
        if self.game_wrapper is None:
            raise ValueError(
                "You need to build a game_wrapper to use this function. Otherwise there is no way to build a reward function automaticaly."
            )
        self.last_fitness = self.game_wrapper.fitness

        # Building the action_space
        self._DO_NOTHING = WindowEvent.PASS
        self._buttons = [
            WindowEvent.PRESS_ARROW_UP, WindowEvent.PRESS_ARROW_DOWN, WindowEvent.PRESS_ARROW_RIGHT,
            WindowEvent.PRESS_ARROW_LEFT, WindowEvent.PRESS_BUTTON_A, WindowEvent.PRESS_BUTTON_B,
            WindowEvent.PRESS_BUTTON_SELECT, WindowEvent.PRESS_BUTTON_START
        ]
        self._button_is_pressed = {button: False for button in self._buttons}

        self._buttons_release = [
            WindowEvent.RELEASE_ARROW_UP, WindowEvent.RELEASE_ARROW_DOWN, WindowEvent.RELEASE_ARROW_RIGHT,
            WindowEvent.RELEASE_ARROW_LEFT, WindowEvent.RELEASE_BUTTON_A, WindowEvent.RELEASE_BUTTON_B,
            WindowEvent.RELEASE_BUTTON_SELECT, WindowEvent.RELEASE_BUTTON_START
        ]
        self._release_button = {button: r_button for button, r_button in zip(self._buttons, self._buttons_release)}

        self.actions = [self._DO_NOTHING] + self._buttons
        if action_type == "all":