Script to create an ASDF file useful for testing asdf-cpp implementation

create_asdf.py

#!/usr/bin/env python3

import asdf
import numpy as np

tree = dict()
tree['top'] = dict(foo=42, bar='hello', nums=np.array([x for x in range(100)]))

with asdf.AsdfFile(tree) as af:
    af.write_to('test.asdf')