(pipelineOperator: StringAdd).self
(pipelineOperator: StringFormat).self
(pipelineOperator: ArrowAssoc[PipelineOperator]).x
(Since version 2.10.0) Use leftOfArrow
instead
(pipelineOperator: Ensuring[PipelineOperator]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
One of MongoDBs pipeline operators for aggregation. Sealed as these are defined in the mongodb spec, and clients should not have custom operators.