perbaiki get_mandatory

esipkd/models/rpc.py

@@ -296,7 +296,7 @@ def get_mandatory(data, values):
     elif isinstance(values,dict):
     elif isinstance(values,dict):
         for k,v in values.items():
         for k,v in values.items():
             if v:
             if v:
-                if len(str(data.get(k,'')) > v:
+                if len(str(data.get(k,''))) > v:
                     raise JsonRpcInvalidDataError(
                     raise JsonRpcInvalidDataError(
                         message="{} error, max character {}".format(k, v)
                         message="{} error, max character {}".format(k, v)
                     )
                     )