the valuate method from model maker returns a dictionary with many metrics:
eg:
{'AP': 0.11919018,
 'AP50': 0.21924835,
 'AP75': 0.11994627,
 'AP_/Baked Goods': 0.012772277,
 'AP_/Cheese': 0.011738928,
 'AP_/Salad': 0.386223,
 'AP_/Seafood': 0.0024752475,
 'AP_/Tomato': 0.18274146,
 'APl': 0.12009244,
 'APm': 0.095719256,
 'APs': -1.0,
 'ARl': 0.24987727,
 'ARm': 0.55833334,
 'ARmax1': 0.09158534,
 'ARmax10': 0.20143048,
 'ARmax100': 0.25207776,
 'ARs': -1.0}

that’s why it can’t unpack into two values.
I’d assign it to a variable and just print the variable or use the right key