Help with a table function

I am bad at PL/SQL and could not figure out why. Could you please help?

CREATE OR REPLACE PACKAGE MY_LIB AS

TYPE EMP_REC IS RECORD

(

emp_id             number(4),

emp_name           VARCHAR2(10) 

)

;

TYPE EMP_TBL IS TABLE OF EMP_REC;

    FUNCTION EMP_FN RETURN EMP_TBL;

END MY_LIB;

/

Package created.

CREATE OR REPLACE PACKAGE BODY MY_LIB AS

FUNCTION EMP_FN RETURN EMP_TBL

AS

  MY_EMP_TBL EMP_TBL;  

BEGIN

SELECT EMPNO, ENAME BULK COLLECT INTO MY_EMP_TBL

FROM EMP

;

RETURN MY_EMP_TBL;

END EMP_FN;

END MY_LIB;

/

Package body created.

SELECT * FROM TABLE(MY_LIB.EMP_FN);