Function download_formal_snapshot

pub async fn download_formal_snapshot(
    path: &Path,
    epoch: EpochId,
    genesis: &Path,
    snapshot_store_config: ObjectStoreConfig,
    archive_store_config: ObjectStoreConfig,
    num_parallel_downloads: usize,
    network: Chain,
    verify: SnapshotVerifyMode,
    all_checkpoints: bool,
) -> Result<(), Error>