OptionalaccountThe account that would open. Defaults to the connected wallet (MK-106).
Core's horizonSeconds: how long the position must survive. Required, with no default
(MK-240). undefined keeps the hook disabled rather than substituting a horizon: a form whose
horizon field is empty has not asked the question yet.
Core's priceFallBps: the price fall the position must survive, from 0n up to but excluding
10_000n. Required, with no default (MK-240), and undefined keeps the hook disabled.
useDrawForMargin's parameters: the collateral and account, and the margin the caller chooses.