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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _write_init_fetchers(self, filenames):
 """ Write fetcher init file Args: filenames (dict):
 dict of filename and classes """

        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)