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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 axis_to_data_points(ax, points_axis):
 """Map points in axis coordinates to data coordinates. Uses matplotlib.transform. Parameters ax : matplotlib.axis Axis object from matplotlib. points_axis : np.array Points in axis coordinates. """

    axis_to_data = ax.transAxes + ax.transData.inverted()
    return axis_to_data.transform(points_axis)