public static IEnumerable<TReturn> Query<TFirst, TSecond, TReturn>(
	this IDbConnection cnn,
	string sql,
	Func<TFirst, TSecond, TReturn> map,
	Object param = null,
	IDbTransaction transaction = null,
	bool buffered = true,
	string splitOn = "Id",
	Nullable<int> commandTimeout = null,
	Nullable<CommandType> commandType = null
)

<ExtensionAttribute>
Public Shared Function Query(Of TFirst, TSecond, TReturn) ( 
	cnn As IDbConnection,
	sql As String,
	map As Func(Of TFirst, TSecond, TReturn),
	Optional param As Object = Nothing,
	Optional transaction As IDbTransaction = Nothing,
	Optional buffered As Boolean = true,
	Optional splitOn As String = "Id",
	Optional commandTimeout As Nullable(Of Integer) = Nothing,
	Optional commandType As Nullable(Of CommandType) = Nothing
) As IEnumerable(Of TReturn)

public:
[ExtensionAttribute]
generic<typename TFirst, typename TSecond, typename TReturn>
static IEnumerable<TReturn>^ Query(
	IDbConnection^ cnn, 
	String^ sql, 
	Func<TFirst, TSecond, TReturn>^ map, 
	Object^ param = nullptr, 
	IDbTransaction^ transaction = nullptr, 
	bool buffered = true, 
	String^ splitOn = L"Id", 
	Nullable<int> commandTimeout = nullptr, 
	Nullable<CommandType> commandType = nullptr
)

[<ExtensionAttribute>]
static member Query : 
        cnn : IDbConnection * 
        sql : string * 
        map : Func<'TFirst, 'TSecond, 'TReturn> * 
        ?param : Object * 
        ?transaction : IDbTransaction * 
        ?buffered : bool * 
        ?splitOn : string * 
        ?commandTimeout : Nullable<int> * 
        ?commandType : Nullable<CommandType> 
(* Defaults:
        let _param = defaultArg param null
        let _transaction = defaultArg transaction null
        let _buffered = defaultArg buffered true
        let _splitOn = defaultArg splitOn "Id"
        let _commandTimeout = defaultArg commandTimeout null
        let _commandType = defaultArg commandType null
*)
-> IEnumerable<'TReturn>