delayAtLeast
Ensures each emitted item is held for at least duration from the moment this flow is collected.
A timer starts at collection time. Items for which condition returns true are suspended until the timer has elapsed; if the timer already fired before the item arrived, they pass through immediately. Items for which condition returns false are always emitted immediately, regardless of the timer.
Typical use: mix fast-path items (e.g. progress/pending signals) that must appear instantly with a result item that should be held long enough for a minimum-display animation to complete.
Parameters
minimum time to wait before emitting items that satisfy condition.
predicate that controls which items are subject to the minimum delay. Defaults to { true } — all items are delayed.