ConstFormat a satoshi amount with a unit label. Calls Go: btcutil.Amount.Format() from btcutil.
Optionalunit: string"BTC", "mBTC", "uBTC", "satoshi", or "sat". Default: "BTC".
Convert a BTC value to satoshis. Calls Go: btcutil.NewAmount() from btcutil.
Convert satoshis to BTC. Calls Go: btcutil.Amount.ToBTC() from btcutil.
Bitcoin amount conversions between BTC and satoshis.