code: def prepare_input(self, extracted_str):
          
  
          # Remove withspace
          if self.options['remove_whitespace']:
              optimized_str = re.sub(' +', '', extracted_str)
          else:
              optimized_str = extracted_str
  
          # Remove accents
          if self.options['remove_accents']:
              optimized_str = unidecode(optimized_str)
  
          # convert to lower case
          if self.options['lowercase']:
              optimized_str = optimized_str.lower()
  
          # specific replace
          for replace in self.options['replace']:
              assert len(replace) == 2, 'A replace should be a list of 2 items'
              optimized_str = optimized_str.replace(replace[0], replace[1])
  
          return optimized_str
docs: Input raw string and do transformations, as set in template file.