assert the required bits are supplied

Author: albu-diku

mig/shared/base.py

@@ -527,6 +527,10 @@ def force_utf8(val, highlight=''):
 
 
 def _walk_and_convert_recursive(input_obj, highlight='', _is_primitive=None, _force_primitive=None, _force_recursive=None):
+    assert _is_primitive is not None
+    assert _force_primitive is not None
+    assert _force_recursive is not None
+
     thetype = type(input_obj)
     if issubclass(thetype, dict):
         return {_force_recursive(i, highlight): _force_recursive(j, highlight) for (i, j) in