bulk_import not accepting json

[wmullen0]

When trying to use the function Collections.bulkImport_json to upload a JSON structure, I continually receive

Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python3.8/site-packages/pyArango/collection.py", line 777, in bulkImport_json
TypeError: string indices must be integers

Why is this? I am able to upload manually to arangodb with the same json file.