Foo.py

def get_latest_file_from_sftp(*, local_file_location: str, config: dict) -> None:

    host = config["host"]
    password = config["password"]
    username = config["username"]

    base_folder = config["base_folder"]

    conn = pysftp.Connection(host, username=username, password=password)

    fnames = conn.listdir(base_folder)
    fnames = [
        (
            fname,
            datetime.fromtimestamp(
                conn.lstat(f"{base_folder}/{fname}").st_mtime
            ),
        )
        for fname in fnames
    ]

    most_recent_file = max(fnames, key=lambda x: x[1])[0]
    logger.info(f"Most recent file: {most_recent_file}")

    conn.get(f"{base_folder}/{most_recent_file}",local_file_location)
    conn.close()