import

reth_era_utils

Function import 

Source 
pub fn import<Downloader, Era, PF, B, BB, BH>(
    downloader: Downloader,
    provider_factory: &PF,
    hash_collector: &mut Collector<BlockHash, BlockNumber>,
) -> Result<BlockNumber>
where
    B: Block<Header = BH, Body = BB>,
    BH: FullBlockHeader + Value,
    BB: FullBlockBody<Transaction = <<<PF as DatabaseProviderFactory>::ProviderRW as NodePrimitivesProvider>::Primitives as NodePrimitives>::SignedTx, OmmerHeader = BH>,
    Downloader: Stream<Item = Result<Era>> + Send + 'static + Unpin,
    Era: EraMeta + Send + 'static,
    PF: DatabaseProviderFactory<ProviderRW: BlockWriter<Block = B> + DBProvider + StaticFileProviderFactory<Primitives: NodePrimitives<Block = B, BlockHeader = BH, BlockBody = BB>> + StageCheckpointWriter> + StaticFileProviderFactory<Primitives = <<PF as DatabaseProviderFactory>::ProviderRW as NodePrimitivesProvider>::Primitives>,
Expand description

Imports history from ERA files. Imports blocks from downloader using provider.

Returns current block height.