fix path

test.py

@@ -188,7 +188,7 @@ class MineRLSQILBaselineAgent(MineRLAgentBase):
 
     def load_agent(self):
         boundaries = cached_reward_boundary(
-            cache_dir=os.environ.get('BOUNDARY_CACHE'),
+            cache_dir=='./train/boundary_cache/',
             env_id=MINERL_GYM_ENV,
             n_groups=OPTION_N_GROUPS,
             random_state=KMEANS_SEED)