old_contents: """Script that creates a mock-run for the basler camera"""
  from os.path import join as op_join
  
  from .base import DeviceBase
  
  class BaslerCamera(DeviceBase):
      """
      Basler Camera device
      Based on example /gpfs/exfel/exp/SPB/201930/p900061/raw/r0055/RAW-R0055-DA01-S00000.h5
      """
  
      def __init__(self, device_id, nsamples=None, sensor_size=None):
          """Create a dummy basler device that inherits from Device Base"""
          self.sensor_size = sensor_size or (2058, 2456)
          super(BaslerCamera, self).__init__(device_id, nsamples=nsamples)
          self.output_channels = ('daqOutput/data',)
          # Technically, only the part before the / is the output channel.
          # But there is a structure associated with the part one level after that,
          # and we don't know what else to call it.
          self.instrument_keys = [
              ('image/bitsPerPixel', 'i4', ()),
              ('image/dimTypes', 'i4', (2,)),
              ('image/dims', 'u8', (2,)),
              ('image/encoding', 'i4', ()),
              ('image/pixels', 'u2', self.sensor_size),
              ('image/roiOffsets', 'u8', (2,)),
              ('image/binning', 'u8', (2,)),
              ('image/flipX', 'u1', ()),
              ('image/flipY', 'u1', ())
          ]
  
      def write_instrument(self, f):
          super().write_instrument(f)
  
          # Add fixed metadata
          for channel in self.output_channels:
              image_grp = 'INSTRUMENT/{}:{}/image/'.format(self.device_id, channel)
              f[image_grp]['bitsPerPixel'][:self.nsamples] = 16
              f[image_grp]['dims'][:self.nsamples] = self.sensor_size
  
  
  
new_contents: """Script that creates a mock-run for the basler camera"""
  from .base import DeviceBase
  
  class BaslerCamera(DeviceBase):
      """
      Basler Camera device
      Based on example /gpfs/exfel/exp/SPB/201930/p900061/raw/r0055/RAW-R0055-DA01-S00000.h5
      """
  
      def __init__(self, device_id, nsamples=None, sensor_size=None):
          """Create a dummy basler device that inherits from Device Base"""
          self.sensor_size = sensor_size or (2058, 2456)
          super(BaslerCamera, self).__init__(device_id, nsamples=nsamples)
          self.output_channels = ('daqOutput/data',)
          # Technically, only the part before the / is the output channel.
          # But there is a structure associated with the part one level after that,
          # and we don't know what else to call it.
          self.instrument_keys = [
              ('image/bitsPerPixel', 'i4', ()),
              ('image/dimTypes', 'i4', (2,)),
              ('image/dims', 'u8', (2,)),
              ('image/encoding', 'i4', ()),
              ('image/pixels', 'u2', self.sensor_size),
              ('image/roiOffsets', 'u8', (2,)),
              ('image/binning', 'u8', (2,)),
              ('image/flipX', 'u1', ()),
              ('image/flipY', 'u1', ())
          ]
  
      def write_instrument(self, f):
          super().write_instrument(f)
  
          # Add fixed metadata
          for channel in self.output_channels:
              image_grp = 'INSTRUMENT/{}:{}/image/'.format(self.device_id, channel)
              f[image_grp]['bitsPerPixel'][:self.nsamples] = 16
              f[image_grp]['dims'][:self.nsamples] = self.sensor_size
  
  
  
subject: Remove os.path import