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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 rotate_view(self, axis_ind=0, angle=0):
 """ Rotate the camera view. Args: axis_ind: Index of axis to rotate. Defaults to 0, i.e., a-axis. angle: Angle to rotate by. Defaults to 0. """

        camera = self.ren.GetActiveCamera()
        if axis_ind == 0:
            camera.Roll(angle)
        elif axis_ind == 1:
            camera.Azimuth(angle)
        else:
            camera.Pitch(angle)
        self.ren_win.Render()