regarding placeholders

i have added placeholder and replaced its values in a package
but im sending email from a different package but same database
here is the placeholder name

 io_email_replace_vals (179).fieldname := '|NON_PRODUCTION_BANNER|';

here is the placeholder value:
select name into v_db_name from v$database;
      IF v_db_name <> 'DMPROD' THEN
      io_email_replace_vals (179).fieldvalue :=
      '============= THE FOLLOWING SECTION WILL NOT APPEAR ON PRODUCTION ============= ' || CHR(10) ||
      'DB = ' ||v_db_name  || CHR(10) ||
      'TO = <to>'  || CHR(10) ||
      'CC = <cc>'  || CHR(10) ||
      'BCC= <bcc>' ;
     
      ELSE
      io_email_replace_vals (179).fieldvalue := '';
      END IF;

My question is should i enter these two again in the new package where im sending the email or just call the procedure