pub async fn send_crypto(
amount: f64,
fee: f64,
blockchain: &mut Blockchain,
sender_wallet: &mut Wallet,
receiver_wallet: &mut Wallet,
blocks_collection: Collection<Document>,
wallets_collection: Collection<Document>,
blockchain_collection: Collection<Document>,
) -> Result<String, Box<dyn Error>>Expand description
Crypto transaction from one wallet to another.