Function processes_using_through 

pub fn processes_using_through(
    proc_root: &Path,
    target: &UseTarget<'_>,
    self_pid: u32,
) -> UseScan

What: Every process other than self_pid that uses the target, through a proc root. Why: Recovery runs this only after a record is missing or a lock is unproven, so the scan costs nothing on a commit that finds its state whole.

In TS you’d write (pseudocode):

async function processesUsing({ procRoot, target, selfPid }): Promise<UseScan>;