fn non_replayable_tail_count_for_coverage_check(
db: &impl JournalReplayReader,
checkpoint_command_id: i64,
bounds: Option<JournalCommandIdBounds>,
replay_from_command_id: i64,
) -> Result<Option<i64>, String>fn non_replayable_tail_count_for_coverage_check(
db: &impl JournalReplayReader,
checkpoint_command_id: i64,
bounds: Option<JournalCommandIdBounds>,
replay_from_command_id: i64,
) -> Result<Option<i64>, String>