true if the collection existed and was dropped
(dropCollectionResult: StringAdd).self
(dropCollectionResult: StringFormat).self
(dropCollectionResult: ArrowAssoc[DropCollectionResult]).x
(Since version 2.10.0) Use leftOfArrow
instead
(dropCollectionResult: Ensuring[DropCollectionResult]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
true if the collection existed and was dropped