# cf.Field.flag_masks

`Field.``flag_masks`

  The flag_masks CF property.

  Provides a list of bit fields expressing Boolean or enumerated flags. See http://cfconventions.org/latest.html for details.

  Stored as a 1-d numpy array but may be set as array-like object.

  Examples: |

      >>> f.flag_masks = numpy.array([1, 2, 4], dtype='int8')
      >>> f.flag_masks
      array([1, 2, 4], dtype=int8)
      >>> f.flag_masks = (1, 2, 4, 8)
      >>> f.flag_masks
      array([1, 2, 4, 8], dtype=int8)
      >>> del f.flag_masks

      >>> f.setprop('flag_masks', 1)
      >>> f.getprop('flag_masks')
      array([1])
      >>> f.delprop('flag_masks')