public ReadPreference(
	ReadPreferenceMode mode,
	IEnumerable<TagSet> tagSets = null,
	Nullable<TimeSpan> maxStaleness = null
)

Public Sub New ( 
	mode As ReadPreferenceMode,
	Optional tagSets As IEnumerable(Of TagSet) = Nothing,
	Optional maxStaleness As Nullable(Of TimeSpan) = Nothing
)

new : 
        mode : ReadPreferenceMode * 
        ?tagSets : IEnumerable<TagSet> * 
        ?maxStaleness : Nullable<TimeSpan> 
(* Defaults:
        let _tagSets = defaultArg tagSets null
        let _maxStaleness = defaultArg maxStaleness null
*)
-> ReadPreference