StreamClass.prototype.dropEvery(every: number): StreamClass<T, E>
Drops the values at positions 0, every, 2·every, … (Elixir's drop_every/2,
counting values; failures pass through).
await Stream.from([0, 1, 2, 3, 4]).dropEvery(2).collect(); // [1, 3]
StreamClass<T, E>