does the result will be like this
[{391895: [array([[3.43202576e+02, 2.43713760e+01, 4.96343414e+02, 3.32774170e+02,
8.81948233e-01],
or
{‘391895’: array([[1.15911709e-03, 3.19864594e-05, 1.06177040e-05, 6.39094651e-07,
1.44435398e-06, 1.01086480e-05,
i mean the structure of format of the features will start with symbol { or will be a list that start with symbol [ ?