writer_2_1.hdf5
  @default = "entry"
  entry:NXentry
    @NX_class = NXentry
    @default = "data"
    data:NXdata
      @NX_class = NXdata
      @axes = "two_theta"
      @signal = "counts"
      @two_theta_indices = 0
      counts --> /entry/instrument/detector/counts
      two_theta --> /entry/instrument/detector/two_theta
    instrument:NXinstrument
      @NX_class = NXinstrument
      detector:NXdetector
        @NX_class = NXdetector
        counts:NX_INT32[31] = [1037, 1318, 1704, '...', 1321]
          @target = /entry/instrument/detector/counts
          @units = "counts"
        two_theta:NX_FLOAT64[31] = [17.92608, 17.92591, 17.92575, '...', 17.92108]
          @target = /entry/instrument/detector/two_theta
          @units = "degrees"