OptionalaccountThe account that would open the Trove. Supply it whenever you have it (MK-067, MK-106).
The borrowing fee is skipped entirely for a fee exempt account
(BorrowerOperations.sol:637-643), and the exempt cohort is NOT empty on mainnet, so for
such a caller the largest valid draw is LARGER than the one this returns without it.
Omitted, the calculation assumes the account is not exempt, exactly as
previewOpen does with the same absence. useBorrowingPower supplies the connected
wallet when the caller does not.
It has no effect in Recovery Mode, where the fee is skipped for everyone and the mode is read from the chain rather than from this parameter.
How long the position must survive, in seconds. Required, with no default (MK-240): the
library cannot know how long a position will be held. Covers the interest the Trove accrues over
that time at the rate it would open with. 0n asks for no interest allowance, which is a choice
and is reported as one. The price history for choosing it is on drawForMargin.
OptionalpriceOverride the price; defaults to fetchPrice().
The fall in the BTC price, in basis points of the price at the read, the position must
survive. Required, with no default (MK-240), from 0n up to but excluding 10_000n.
Inputs to MusdClient.drawForMargin: the collateral, and the margin the caller chooses.