code: def _write_init_fetchers(self, filenames):
          
          destination = "%s%s" % (self.output_directory, self.fetchers_path)
          self.write(destination=destination, filename="__init__.py", template_name="__init_fetcher__.py.tpl",
                     filenames=self._prepare_filenames(filenames, suffix='Fetcher'),
                     class_prefix=self._class_prefix,
                     product_accronym=self._product_accronym,
                     header=self.header_content)
docs: Write fetcher init file
  
              Args:
                  filenames (dict): dict of filename and classes