IT>_ = sequence
IT>    .Where  (...)
IT>    .GroupBy(...)
IT>    .Select (...)
IT>    ;
IT>

_ = (sequence
    .Where  (...)
    .GroupBy(...)
    .Select (...)
    )

IT>_ = sequence
IT>    .Where  (...)
IT>    .GroupBy(...)
IT>    .Select (...)
IT>    ;
IT>

func (imp *EventsImpl) ViewsByCreator(ctx context.Context, uid string, includeAdult bool, limit int64, cursor pcursors.PaginationCursor, project *EventModelProjectionOptions) ([]EventAggregationView, error) {
    match := bson.M{"creator_id": uid}
    if !includeAdult {
        match["adult"] = false
    }
    cursor.Apply(match)
    pipeline := newEventViewPipeline(match).
        withSort(cursor.Sort()).
        withLimit(limit).
        withProject(project)  // Или это другое???

    return imp.views(ctx, pipeline.build())
}

IT>>_ = sequence
IT>>    .Where  (...)
IT>>    .GroupBy(...)
IT>>    .Select (...)
IT>>    ;
IT>>

var a = 1
sequence
    .Where  (...)
    .GroupBy(...)
    .Select (...)
print("123")
var b = 2

IT>var a = 1
IT>sequence
IT>    .Where  (...)
IT>    .GroupBy(...)
IT>    .Select (...)
IT>print("123")
IT>var b = 2
IT>

fun main() {
    val sequence = sequenceOf(1, 10, 100)
    var a = 1
    sequence
        .filter { it > 10 }
        .groupBy { it % 2 }
        .toList()
    print("123")
    var b = 2 
}