old_contents: # TOOL test-data-in-out.py: "Test data input and output in Python" (Data input output test.) 
  # INPUT input TYPE GENERIC
  # OUTPUT output
  # OUTPUT OPTIONAL missing_output.txt
  
  import shutil
  
  shutil.copyfile('input', 'output')
  
  
new_contents: # TOOL test-data-in-out.py: "Test data input and output in Python" (Data input output test.) 
  # INPUT input TYPE GENERIC
  # OUTPUT output
  # OUTPUT OPTIONAL missing_output.txt
  # IMAGE chipster-tools-python
  
  import shutil
  
  shutil.copyfile('input', 'output')
  
  
subject: Test image definition in SADL