# cf.Data.__contains__

`Data.``__contains__`(value)

  Membership test operator `in`

  x.__contains__(y) <==> y in x

  Returns True if the value is contained anywhere in the data array. The value may be a `cf.Data` object.

  Examples: |

      >>> d = cf.Data([[0.0, 1,  2], [3, 4, 5]], 'm')
      >>> 4 in d
      True
      >>> cf.Data(3) in d
      True
      >>> cf.Data([2.5], units='2 m') in d
      True
      >>> [[2]] in d
      True
      >>> numpy.array([[[2]]]) in d
      True
      >>> cf.Data(2, 'seconds') in d
      False