Add retry_utils, update docstrings, add tests

falyx/retry_utils.py

@@ -0,0 +1,16 @@
+from falyx.action import Action, BaseAction
+from falyx.hook_manager import HookType
+from falyx.retry import RetryHandler, RetryPolicy
+
+
+def enable_retries_recursively(action: BaseAction, policy: RetryPolicy | None):
+    if not policy:
+        policy = RetryPolicy(enabled=True)
+    if isinstance(action, Action):
+        action.retry_policy = policy
+        action.retry_policy.enabled = True
+        action.hooks.register(HookType.ON_ERROR, RetryHandler(policy).retry_on_error)
+
+    if hasattr(action, "actions"):
+        for sub in action.actions:
+            enable_retries_recursively(sub, policy)