code: def write_compound_to_auxi_file(directory, compound):
      
  
      file_name = "Compound_" + compound.formula + ".json"
      with open(os.path.join(directory, file_name), 'w') as f:
          f.write(str(compound))
docs: Writes a compound to an auxi file at the specified directory.
  
      :param dir: The directory.
      :param compound: The compound.