ndi.cloud.api.documents.get_bulk_upload_url

  get_bulk_upload_url - Get URL for uploading documents in bulk

  uploadUrl = get_bulk_upload_url(dataset_id) returns a signed url to
    upload a zip file containing one or more json files containing document
    data (as a root-level array) for the specified dataset

  Inputs:
    dataset_id - string representing a dataset id

  Outputs:
    uploadUrl - string representing a upload url