Inherited from Serializable
Inherited by implicit conversion any2stringadd from
SumField to any2stringadd[SumField]
Inherited by implicit conversion StringFormat from
SumField to StringFormat[SumField]
Inherited by implicit conversion ArrowAssoc from
SumField to ArrowAssoc[SumField]
(Since version 0.12-RC5) Use reactivemongo.api.collections.GenericCollection.aggregateWith