How to using local variable in function n1ql inline

SQL++
,
1

Hi i’m new use couchbase, im using couchbase community.
This is i write in Posgresql

create function myFunction(“p_name” varchar) RETURNS TABLE (“result_1” varchar, “result_2” varchar) AS $BODY$)

declare v_var1 varchar;
declare v_var2 integer;
declare v_var3 bool;

begin

  v_var1 : = "value"; 
  v_var2 : =  1;
  v_var3 : =  true;

end;

but when i tried user defined function (UDF) in couchbase container, i get message error “Creation query: CREATE OR REPLACE FUNCTION myFunction (p_var1) LANGUAGE inline AS (declare v_var1 varchar;”…

i tried using LET, var, declare and same happen…
may i get the solution how to fix this?

regards