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What does this code do: [aLock lockWhenCondition:(int)self beforeDate:[NSDate dateWithTimeIntervalSinceNow:maxTimeInterval]];

It will have no effect at all

A lock is set using a compound condition comprising of self and a time interval

A lock is locked if and when self is instantiated before a specific date-time

Control blocks for some time on a lock on a condition that is unique to an instance

Answer:
Control blocks for some time on a lock on a condition that is unique to an instance

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