code: def get_filepath(self, filename):
          
          return os.path.join(self.parent_folder, '{},{},{}'.format(self.tile_name, self.date, self.aws_index),
                              self.add_file_extension(filename)).replace(':', '.')
docs: Creates file path for the file.
  
          :param filename: name of the file
          :type filename: str
          :return: filename with path on disk
          :rtype: str