code: def generate(data, format="auto"):
      
      # Support both files and strings and attempt to infer file type
      try:
          with open(data) as in_file:
              if format == 'auto':
                  format = data.split('.')[-1]
              data = in_file.read()
      except:
          if format == 'auto':
              format = 'smi'
      return format_converter.convert(data, format, 'json')
docs: Converts input chemical formats to json and optimizes structure.
  
      Args:
          data: A string or file representing a chemical
          format: The format of the `data` variable (default is 'auto')
  
      The `format` can be any value specified by Open Babel
      (http://openbabel.org/docs/2.3.1/FileFormats/Overview.html). The 'auto'
      option uses the extension for files (ie. my_file.mol -> mol) and defaults
      to SMILES (smi) for strings.