This interface can query the ledger records of the futures business line.
If there are open positions, the status of the first page returned will be Pending, indicating the realized profit and loss in the current 8-hour settlement period. Please specify the minimum offset number of the current page into the offset field to move to the next page.
Supplementary instructions for startAt and endAt: startAt must be less than endAt; and the interval cannot exceed 1 day; only one field is allowed, and if only one field is passed, another field will be automatically added or subtracted by the system 1 day to complete