Function first_here 

fn first_here(
    alone: bool,
    told: bool,
    kept_since: i64,
    acked: Option<i64>,
    since: i64,
    lead: i64,
) -> bool

Whether this computer may remind a dose to remind from since plainly, as its first (docs/health.md, “What became of a reminder”; the sixth and seventh reviews’ C1): alone (sharing off, or no other device in the folder); or its opening, its claim and its records written (told), the doses kept here since before since (kept_since), and every phone’s word that it read this opening seen here lead before since (acked). Else it is as a computer opened after the dose: quiet around a phone’s alarm, then the doubt first.