rewoo.ipynb에서는 multi-step planner를 진행할때 observation없이 사용하는 방법을 설명합니다.
planner는 task 처리 형태는 아래와 같습니다.
class ReWOO(TypedDict):
task: str
plan_string: str
steps: List
results: dict
result: str
def get_plan(state: ReWOO): # plan
def tool_execution(state: ReWOO): # tool
def solve(state: ReWOO): # solve
def _get_current_task(state: ReWOO):
def _route(state):
_step = _get_current_task(state)
if _step is None:
# We have executed all tasks
return "solve"
else:
# We are still executing tasks, loop back to the "tool" node
return "tool"이때의 Graph 구성은 아래와 같습니다.
from langgraph.graph import StateGraph, END
graph = StateGraph(ReWOO)
graph.add_node("plan", get_plan)
graph.add_node("tool", tool_execution)
graph.add_node("solve", solve)
graph.add_edge("plan", "tool")
graph.add_edge("solve", END)
graph.add_conditional_edges("tool", _route)
graph.set_entry_point("plan")
app = graph.compile()