How to use the tbump.file_bumper.Patch function in tbump

) -> List[Patch]:
        old_string = change_request.old_string
        new_string = change_request.new_string
        search = change_request.search
        patches = []

        file_path_glob = self.working_path / change_request.src
        for file_path_str in glob.glob(file_path_glob, recursive=True):
            file_path = Path(file_path_str)
            expanded_src = file_path.relpath(self.working_path)
            old_lines = file_path.lines(retain=False)

            for i, old_line in enumerate(old_lines):
                if should_replace(old_line, old_string, search):
                    new_line = old_line.replace(old_string, new_string)
                    patch = Patch(
                        self.working_path, expanded_src, i, old_line, new_line
                    )
                    patches.append(patch)
        if not patches:
            raise CurrentVersionNotFound(
                src=change_request.src, current_version_string=old_string
            )
        return patches

def apply(self) -> None:
        file_path = self.working_path / self.src
        contents = file_path.bytes()
        lines = contents.splitlines(keepends=True)
        old_line = lines[self.lineno]
        lines[self.lineno] = self.new_line.encode() + Patch.get_ending(old_line)
        file_path.write_lines(lines, linesep=None)