Task<WriteConcernResult> UpdateAsync(
	CollectionNamespace collectionNamespace,
	MessageEncoderSettings messageEncoderSettings,
	WriteConcern writeConcern,
	BsonDocument query,
	BsonDocument update,
	IElementNameValidator updateValidator,
	bool isMulti,
	bool isUpsert,
	CancellationToken cancellationToken
)

Function UpdateAsync ( 
	collectionNamespace As CollectionNamespace,
	messageEncoderSettings As MessageEncoderSettings,
	writeConcern As WriteConcern,
	query As BsonDocument,
	update As BsonDocument,
	updateValidator As IElementNameValidator,
	isMulti As Boolean,
	isUpsert As Boolean,
	cancellationToken As CancellationToken
) As Task(Of WriteConcernResult)

abstract UpdateAsync : 
        collectionNamespace : CollectionNamespace * 
        messageEncoderSettings : MessageEncoderSettings * 
        writeConcern : WriteConcern * 
        query : BsonDocument * 
        update : BsonDocument * 
        updateValidator : IElementNameValidator * 
        isMulti : bool * 
        isUpsert : bool * 
        cancellationToken : CancellationToken -> Task<WriteConcernResult>