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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 K(self):
 """ Get the intrinsic matrix for the Camera object. Returns K : (3, 3) float Intrinsic matrix for camera """

        K = np.eye(3, dtype=np.float64)
        K[0, 0] = self.focal[0]
        K[1, 1] = self.focal[1]
        K[0, 2] = self.resolution[0] / 2.0
        K[1, 2] = self.resolution[1] / 2.0
        return K