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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(self, angle, axis):
 """ Rotate the matrix by some angle about a given axis. The rotation is applied *after* the transformations already present in the matrix. Parameters angle : float The angle of rotation, in degrees. axis : array-like The x, y and z coordinates of the axis vector to rotate around. """

        self.matrix = np.dot(self.matrix, transforms.rotate(angle, axis))