fix #1816 (#1829)

### What problem does this PR solve?

#1816
### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

agent/component/__init__.py

 
 
 def component_class(class_name):
-    m = importlib.import_module("graph.component")
+    m = importlib.import_module("agent.component")
     c = getattr(m, class_name)
     return c