`getWithdrawableUsd()` is not a function, replace with `getWithdrawableMarketUsd()`

[kingofclubstroyDev]

synthetix-v3/markets/legacy-market/test/integration/LegacyMarket.ts

Line 155 in 9fa0cde

await v3System.getWithdrawableUsd(await market.marketId()),

[user2745]

good catch