@app.get("/context_b")
async def get_context_b(state: dict = Depends(context_b)):
    return state


@app.get("/context_b_raise")
async def get_context_b_raise(state: dict = Depends(context_b)):
    assert state["context_b"] == "started b"
    assert state["context_a"] == "started a"
    raise OtherDependencyError()


@app.get("/context_b_bg")