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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 _flag_file_path(self, status=None):
 """ Create path to flag file based on indicated or current status. Internal variables used are the pipeline name and the designated pipeline output folder path. :param str status: flag file type to create, default to current status :return str: path to flag file of indicated or current status. """

        flag_file_name = "{}_{}".format(
                self.name, flag_name(status or self.status))
        return pipeline_filepath(self, filename=flag_file_name)