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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def doubleClick(x=None, y=None, interval=0.0, button='left', duration=0.0, tween=linear, pause=None, _pause=True):
 """Performs a double click. This is a wrapper function for click('left', x, y, 2, interval). The x and y parameters detail where the mouse event happens. If None, the current mouse position is used. If a float value, it is rounded down. If outside the boundaries of the screen, the event happens at edge of the screen. Args: x (int, float, None, tuple, optional):
 The x position on the screen where the click happens. None by default. If tuple, this is used for x and y. If x is a str, it's considered a filename of an image to find on the screen with locateOnScreen() and click the center of. y (int, float, None, optional):
 The y position on the screen where the click happens. None by default. interval (float, optional):
 The number of seconds in between each click, if the number of clicks is greater than 1. 0.0 by default, for no pause in between clicks. button (str, int, optional):
 The mouse button clicked. Must be one of 'left', 'middle', 'right' (or 1, 2, or 3) respectively. 'left' by default. Returns: None Raises: ValueError: If button is not one of 'left', 'middle', 'right', 1, 2, 3, 4, 5, 6, or 7 """

    _failSafeCheck()

    # Multiple clicks work different in OSX
    if sys.platform == 'darwin':
        x, y = _unpackXY(x, y)
        _mouseMoveDrag('move', x, y, 0, 0, duration=0, tween=None)
        x, y = platformModule._position()
        platformModule._multiClick(x, y, button, 2)
    else:
        click(x, y, 2, interval, button, _pause=False)

    _autoPause(pause, _pause)