                             tangojs.tango.AttrWriteType.READ_WRITE,
                             undefined,
                             undefined,
-                            null)
+                            null,
+                            tangojs.tango.AttributeDataType.ATT_STRING)
     sine_trend: (->
       name = 'sine_trend'
       format = 'scientific,setprecision(3)'

                   writable,
                   min_value,
                   max_value,
                   alarm
                   ) ->
  _value = initial
  get_info: -> new tangojs.struct.AttributeInfo
    att_alarm: alarm
    data_format: data_format
    data_type: undefined
    description: name
    display_unit: unit
    enum_labels: []

                            new tangojs.tango.AttributeAlarm({
                              max_warning: '50'
                              max_alarm: '70'
                            }),
                            tangojs.tango.AttributeDataType.ATT_DOUBLE)
    string: createAttribute(undefined,
                            'string'
                            undefined,
