From 26f55fb5ab00b0da230bc9cb820969fc4fadc464 Mon Sep 17 00:00:00 2001
From: Shangjie Chen <deanchen@google.com>
Date: Wed, 7 May 2025 10:06:32 -0700
Subject: [PATCH] fix: Use new id for every event.

Fixes #297

PiperOrigin-RevId: 755901205
---
 src/google/adk/flows/llm_flows/base_llm_flow.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/google/adk/flows/llm_flows/base_llm_flow.py b/src/google/adk/flows/llm_flows/base_llm_flow.py
index 3a108b4..e9daa1e 100644
--- a/src/google/adk/flows/llm_flows/base_llm_flow.py
+++ b/src/google/adk/flows/llm_flows/base_llm_flow.py
@@ -261,7 +261,6 @@ class BaseLlmFlow(ABC):
 
     # Calls the LLM.
     model_response_event = Event(
-        id=Event.new_id(),
         invocation_id=invocation_context.invocation_id,
         author=invocation_context.agent.name,
         branch=invocation_context.branch,
@@ -273,6 +272,8 @@ class BaseLlmFlow(ABC):
       async for event in self._postprocess_async(
           invocation_context, llm_request, llm_response, model_response_event
       ):
+        # Use a new id for every event.
+        event.id = Event.new_id()
         yield event
 
   async def _preprocess_async(