pub const REFRESH_MARGIN_SECS: u64 = 300;Expand description
Seconds before a scheduled rotation by which the transfers that
Holder::refresh and Holder::due_resends plan are due, or half the
time left when that is shorter. A plan made at or past the rotation’s
time, which the mint has not made yet as far as its info says, has them
all due at once. A payer should settle a payment this long before the
rotation that drops a note it spends.