output_list_if_set takes three arguments

wireguard/files/wg.conf

@@ -3,7 +3,7 @@
 {{output_key}} = {{object.get('lookup_key')}}
 {%- endif %}
 {%- endmacro %}
-{%- macro output_list_if_set(lookup_key, output_key) %}
+{%- macro output_list_if_set(object, lookup_key, output_key) %}
 {%- for item in object.get(lookup_key, []) %}
 {{output_key}} = {{item}}
 {%- endfor %}