WriteConcern Constructor (String, Optional<Nullable<TimeSpan>>, Optional<Nullable<Boolean>>, Optional<Nullable<Boolean>>)

public WriteConcern(
	string mode,
	Optional<TimeSpan?> wTimeout = default,
	Optional<bool?> fsync = default,
	Optional<bool?> journal = default
)

Public Sub New ( 
	mode As String,
	Optional wTimeout As Optional(Of TimeSpan?) = Nothing,
	Optional fsync As Optional(Of Boolean?) = Nothing,
	Optional journal As Optional(Of Boolean?) = Nothing
)

new : 
        mode : string * 
        ?wTimeout : Optional<Nullable<TimeSpan>> * 
        ?fsync : Optional<Nullable<bool>> * 
        ?journal : Optional<Nullable<bool>> 
(* Defaults:
        let _wTimeout = defaultArg wTimeout new Optional<Nullable<TimeSpan>>()
        let _fsync = defaultArg fsync new Optional<Nullable<bool>>()
        let _journal = defaultArg journal new Optional<Nullable<bool>>()
*)
-> WriteConcern