import json
period = (params_kw or {}).get('period', 'all')
data = await request._run_ns.api_financial_summary(request)
chart_data = [
    {"metric": "收入", "value": data.get('total_revenue_cny', 0)},
    {"metric": "成本", "value": data.get('total_cost_cny', 0)},
    {"metric": "毛利", "value": data.get('gross_profit_cny', 0)},
]
return json.dumps(chart_data, ensure_ascii=False)