public static TResult FetchThrough<TKey, TResult>(
	this ICache cache,
	TKey key,
	string tblCache,
	ICacheParams caching,
	Func<TKey, TResult> fFetch,
	Func<TKey, TResult, TResult> fFilter = null
)
where TResult : class

public static TResult FetchThrough<TKey, TResult>(
	this ICache cache,
	TKey key,
	string tblCache,
	ICacheParams caching,
	Func<TKey, TResult> fFetch,
	Func<TKey, TResult, TResult> fFilter = null
)
where TResult : class

<ExtensionAttribute> 
Public Shared Function FetchThrough(Of TKey, TResult As Class) ( 
	cache As ICache,
	key As TKey,
	tblCache As String,
	caching As ICacheParams,
	fFetch As Func(Of TKey, TResult),
	Optional fFilter As Func(Of TKey, TResult, TResult) = Nothing
) As TResult

<ExtensionAttribute> 
Public Shared Function FetchThrough(Of TKey, TResult As Class) ( 
	cache As ICache,
	key As TKey,
	tblCache As String,
	caching As ICacheParams,
	fFetch As Func(Of TKey, TResult),
	Optional fFilter As Func(Of TKey, TResult, TResult) = Nothing
) As TResult

public:
[ExtensionAttribute]
generic<typename TKey, typename TResult>
where TResult : ref class 
static TResult FetchThrough(
	ICache^ cache, 
	TKey key, 
	String^ tblCache, 
	ICacheParams^ caching, 
	Func<TKey, TResult>^ fFetch, 
	Func<TKey, TResult, TResult>^ fFilter = nullptr
)

public:
[ExtensionAttribute]
generic<typename TKey, typename TResult>
where TResult : ref class 
static TResult FetchThrough(
	ICache^ cache, 
	TKey key, 
	String^ tblCache, 
	ICacheParams^ caching, 
	Func<TKey, TResult>^ fFetch, 
	Func<TKey, TResult, TResult>^ fFilter = nullptr
)

static member FetchThrough : 
        cache : ICache * 
        key : 'TKey * 
        tblCache : string * 
        caching : ICacheParams * 
        fFetch : Func<'TKey, 'TResult> * 
        ?fFilter : Func<'TKey, 'TResult, 'TResult> 
(* Defaults:
        let _fFilter = defaultArg fFilter null
*)
-> 'TResult  when 'TResult : not struct

static member FetchThrough : 
        cache : ICache * 
        key : 'TKey * 
        tblCache : string * 
        caching : ICacheParams * 
        fFetch : Func<'TKey, 'TResult> * 
        ?fFilter : Func<'TKey, 'TResult, 'TResult> 
(* Defaults:
        let _fFilter = defaultArg fFilter null
*)
-> 'TResult  when 'TResult : not struct