Creates a new collection for the registered resource and calls
    `load_into_collection_from_stream` with it.

def load_collection_from_stream(resource, stream, content_type):
    """
    Creates a new collection for the registered resource and calls
    `load_into_collection_from_stream` with it.
    """
    coll = create_staging_collection(resource)
    load_into_collection_from_stream(coll, stream, content_type)
    return coll