how to pass datatable to oracle store procedure from c#

OracleParameter[] parameter ={
                                              new OracleParameter("IN_UserRoleMapping",dt)
                                          };

create or replace
TYPE OBJ_USERROLEMAPPINGTYPE AS OBJECT 
( 
"RoleId" NUMBER

)

create or replace
TYPE USERROLEMAPPINGTYPE 
AS TABLE OF  OBJ_USERROLEMAPPINGTYPE;

create or replace
PROCEDURE USP_ADDEDILDELUSERMASTER
(
  
  IN_USERROLEMAPPINGTYPE  USERROLEMAPPINGTYPE
 
)