Update ExtendLibraryFlow.py

ExtendLibraryFlow.py

@@ -4,6 +4,16 @@ log = logging.get_logger(__name__)
 
 from flow_modules.Tachi67.AbstractBossFlowModule import AbstractBossFlow
 class ExtendLibraryFlow(AbstractBossFlow):
+    """ExtendLibraryFlow is one branch executor of CoderFlow. At a higher level, it takes the goal
+    from the Coder, writes functions in an interactive way, test the code and append the newly written function to
+    the code library.
+
+    *Input Interface (expected input)*
+    - `goal` (str): The goal from the caller (source flow, i.e. CoderFlow)
+    *Output Interface (expected output)*
+    - `result` (str): The result of the flow, the result will be returned to the caller (i.e. CoderFlow).
+    - `summary` (str): The summary of the flow, the summary will be logged into the logs of the caller flow (i.e. CoderFlow).
+    """
     def run(self, input_data: Dict[str, Any]) -> Dict[str, Any]:
         # ~~~ sets the input_data in the flow_state dict ~~~
         self._state_update_dict(update_data=input_data)