Returns true if the given document
is empty.
Returns true if the given document
is empty.
Prepares a writer from the given serialization function.
Prepares a writer from the given serialization function.
(Since version 0.19.1) Internal: will be made private
(Since version 0.19.1) Internal: will be made private
The default serialization pack.
(Since version 0.19.0) Will be replaced by
reactivemongo.api.bson.collection.BSONSerializationPack