original_docstring: 
          This function must be overridden in a sub-class
          
docstring: This function must be overridden in a sub-class
docstring_tokens: This function must be overridden in a sub - class
code: def write_file(self, blob, dest):
          '''
          This function must be overridden in a sub-class
          '''
          raise NotImplementedError()
code_tokens: def write_file ( self , blob , dest ) : raise NotImplementedError ( )
short_docstring: This function must be overridden in a sub-class
short_docstring_tokens: This function must be overridden in a sub - class
comment: '''
          This function must be overridden in a sub-class
          '''