IF OBJECT_ID (N'dbo.MyFuncTest', N'TF') IS NOT NULL
	DROP FUNCTION dbo.MyFuncTest
GO
IF TYPE_ID(N'MyTestTableType') IS NOT NULL
	DROP TYPE MyTestTableType
GO
CREATE TYPE MyTestTableType AS TABLE (Id int, [Text] varchar(255))
GO
CREATE FUNCTION dbo.MyFuncTest (@MyInTable MyTestTableType READONLY)
	RETURNS @ret TABLE (Id int, [Text] varchar(255))
AS
BEGIN
	INSERT INTO @ret (Id, [Text]) SELECT Id+3, [Text] = 'old id = ' + CAST(id AS varchar) FROM @MyInTable
	RETURN
END
GO

DECLARE @MyTest AS MyTestTableType

INSERT  INTO @MyTest
		(Id, [Text])
	VALUES (1759, 'id = 1759'),
		(1760, 'id = 1760'),
		(1761, 'id = 1761');

INSERT INTO @MyTest 
	SELECT * FROM dbo.MyFuncTest(@MyTest)

SELECT * FROM @MyTest