Here is just one example.
bea_tbl = beaapi.get_data(beakey, datasetname='APIDatasetMetaData', Dataset='NIPA')
site-packages/beaapi/response_to_dict.py", line 126, in response_to_dict
if('error' in (map(lambda x: x.lower(), bea_response['BEAAPI']['Results'].keys()))):