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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 matrix(self):
 		"""The current calibration matrix for this device. 		Returns: 			(bool, (float, float, float, float, float, float)):
 :obj:`False` if 			no calibration is set and 			the returned matrix is the identity matrix, :obj:`True` 			otherwise. :obj:`tuple` representing the first two rows of 			a 3x3 matrix as described in :meth:`set_matrix`. 		"""


		matrix = (c_float * 6)()
		rc = self._libinput.libinput_device_config_calibration_get_matrix(
			self._handle, matrix)
		return rc, tuple(matrix)