Support min_tokens parameter (#37)

Author: dyastremsky

src/model.py

@@ -205,7 +205,7 @@ def get_sampling_params_dict(self, params_json):
             if k in params_dict:
                 params_dict[k] = float(params_dict[k])
 
-        int_keys = ["best_of", "max_tokens", "n", "top_k"]
+        int_keys = ["best_of", "max_tokens", "min_tokens", "n", "top_k"]
         for k in int_keys:
             if k in params_dict:
                 params_dict[k] = int(params_dict[k])