How to use the eodatasets3.verify function in eodatasets3

def _verify_checksum(log, metadata_path, dry_run=True):
    dataset_path, all_files = path_utils.get_dataset_paths(metadata_path)
    checksum_file = _expected_checksum_path(dataset_path)
    if not checksum_file.exists():
        # Ingested data doesn't currently have them, so it's only a warning.
        log.warning("checksum.missing", checksum_file=checksum_file)
        return None

    ch = verify.PackageChecksum()
    ch.read(checksum_file)
    if not dry_run:
        for file, successful in ch.iteratively_verify():
            if successful:
                log.debug("checksum.pass", file=file)
            else:
                log.error("checksum.failure", file=file)
                return False

    log.debug("copy.verify", file_count=len(all_files))
    return True