TransactionManager offer a simple way to query and cache the pending transactions,
it means you can get the pending cells without waiting for the transaction to be confirmed.
Similar to ckbIndexer.collector, but it will return the pending cells as well.
You can use usePendingOutputs to control whether to return the pending cells.
TransactionManager
offer a simple way to query and cache the pending transactions, it means you can get the pending cells without waiting for the transaction to be confirmed.