Session: Tracking Individual Conversations
https://adk.dev/sessions/session/
https://google.github.io/adk-docs/sessions/session/
Session
History (events): A chronological sequence of all interactions (Event objects – user messages, agent responses, tool actions) that have occurred within this specific thread.
Session State (state)
State: The Session's Scratchpad (ADK)
session service
InMemorySessionService
VertexAiSessionService
DatabaseSessionService
adk webからSessionをJSONでダウンロード可能
GET /apps/{app_name}/users/{user_id}/sessions/{session_id}
https://github.com/google/adk-python/blob/v1.31.0/src/google/adk/cli/adk_web_server.py#L1144
session_service.get_session()の返り値を返す