Fixed agent observation and inventory init

marl_factory_grid/environment/groups/agents.py

@@ -5,6 +5,12 @@ from marl_factory_grid.environment.groups.collection import Collection
 class Agents(Collection):
     _entity = Agent
 
+    @property
+    def obs_pairs(self):
+        pair_list = [(self.name, self)]
+        pair_list.extend([(a.name, a) for a in self])
+        return pair_list
+
     @property
     def spawn_rule(self):
         return {}