pub const BATCH_SIZE: usize = 30;Expand description
How many days go in one request.
The server caps a batch and answers 413 past it (KASL_MAX_BATCH_DAYS,
ADR 0005), so a long backlog is split here rather than bounced there. Well
under any plausible server limit: the cost of an extra request is one round
trip, the cost of guessing too high is a refusal the user has to decode.