pub async fn query_positions_sim(
backend: &BackendConn,
acc_id: u64,
trd_market: i32,
trd_cache: &TrdCache,
) -> Result<()>pub async fn query_positions_sim(
backend: &BackendConn,
acc_id: u64,
trd_market: i32,
trd_cache: &TrdCache,
) -> Result<()>