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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 _parse_singlefile(self, desired_type: Type[T], file_path: str, encoding: str, logger: Logger, options: Dict[str, Dict[str, Any]]) -> T: """ Relies on the inner parsing function to parse the file. If _streaming_mode is True, the file will be opened and closed by this method. Otherwise the parsing function will be responsible to open and close. :param desired_type: :param file_path: :param encoding: :param options: :return: """

        opts = get_options_for_id(options, self.get_id_for_options())

        if self._streaming_mode:

            # We open the stream, and let the function parse from it
            file_stream = None
            try:
                # Open the file with the appropriate encoding
                file_stream = open(file_path, 'r', encoding=encoding)

                # Apply the parsing function
                if self.function_args is None:
                    return self._parser_func(desired_type, file_stream, logger, **opts)
                else:
                    return self._parser_func(desired_type, file_stream, logger, **self.function_args, **opts)

            except TypeError as e:
                raise CaughtTypeError.create(self._parser_func, e)

            finally:
                if file_stream is not None:
                    # Close the File in any case
                    file_stream.close()

        else:
            # the parsing function will open the file itself
            if self.function_args is None:
                return self._parser_func(desired_type, file_path, encoding, logger, **opts)
            else:
                return self._parser_func(desired_type, file_path, encoding, logger, **self.function_args, **opts)