Exact amount of buyCurrency that will be credited, as a decimal string.
Asset being bought.
Opaque quote id to pass to Conversions.execute. Time-limited.
Exchange rate (sell → buy) locked by this quote, as a decimal string.
Exact amount of sellCurrency that will be debited, as a decimal string.
Asset being sold.
A firm (short-lived) conversion quote. Execute it before it expires by passing
quoteIdback.