code: def matrix(self):
  		
  
  		matrix = (c_float * 6)()
  		rc = self._libinput.libinput_device_config_calibration_get_matrix(
  			self._handle, matrix)
  		return rc, tuple(matrix)
docs: 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`.