public string?GetBlockTransactionsCountByNumber(string blockTag)
{
var blockNumber = GetBlockNumberByTag(blockTag);
if (blockNumber == null)
{
return(Web3DataFormatUtils.Web3Number(_transactionPool.Size()));
}
var block = _blockManager.GetByHeight((ulong)blockNumber);
return(block == null ? null : Web3DataFormatUtils.Web3Number((ulong)block !.TransactionHashes.Count));
}