def get_changed_files(self) -> List[str]:
        """Get the files changed on one git branch vs another.

        Returns:
            List[str]: File paths of changed files, relative to the git repo
                root.
        """
        out = shell_tools.output_of(
            'git',
            'diff',
            '--name-only',
            self.compare_commit_id,
            self.actual_commit_id,
            '--',
            cwd=self.destination_directory)
        return [e for e in out.split('\n') if e.strip()]
Get the files changed on one git branch vs another.

        Returns:
            List[str]: File paths of changed files, relative to the git repo
                root.