Long term memory bank PreloadMemoryTool

Hi there

I use PreloadMemoryTool in adk agent, which can retrieves memories at the start of each turn and places them in the system instruction. reference How to build AI agents with long-term memory using Vertex AI Memory Bank & AD

However, this tool does not work by runner = adk.Runner(). note, I deploy my agent to GKE by get_fast_api_appif I do not use GKE, just run locally by adk web --memory_service_uri="agentengine:// , the memory can be retrieved.

So, it looks like PreloadMemoryTool does not support GKE/fast_api? any idea? thanks