Merge pull request #286 from StephenHogg/255

Fix BUG: TypeError: create_from_arg_string() takes 2 positional arguments but 3 were given

lm_eval/models/dummy.py

@@ -7,7 +7,7 @@ class DummyLM(LM):
         pass
 
     @classmethod
-    def create_from_arg_string(cls, arg_string):
+    def create_from_arg_string(cls, arg_string, additional_config=None):
         return cls()
 
     def loglikelihood(self, requests):
@@ -23,7 +23,7 @@ class DummyLM(LM):
 
         for ctx, _ in requests:
             res.append("lol")
-            assert ctx.strip() != ''
+            assert ctx.strip() != ""
 
         return res