text: description = 'FRM II neutron guide line 4b shutter'
  
  group = 'lowlevel'
  
  includes = ['guidehall']
  
  tango_base = 'tango://ictrlfs.ictrl.frm2:10000/mlz/'
  
  devices = dict(
      NL4b = device('nicos.devices.entangle.NamedDigitalInput',
          description = 'NL4b shutter status',
          mapping = {'closed': 0,
                     'open': 1},
          pollinterval = 60,
          maxage = 120,
          tangodevice = tango_base + 'shutter/nl4b',
      ),
  )
  