'Returns a list of static assets for a course, followed by the total number of assets.
By default all assets are returned, but start and maxresults can be provided to limit the query.
The return format is a list of asset data dictionaries.
The asset data dictionaries have the following keys:
asset_key (:class:`opaque_keys.edx.AssetKey`): The key of the asset
displayname: The human-readable name of the asset
uploadDate (datetime.datetime): The date and time that the file was uploadDate
contentType: The mimetype string of the asset
md5: An md5 hash of the asset content'

def get_all_content_for_course(self, course_key, start=0, maxresults=(-1), sort=None, filter_params=None):

    raise NotImplementedError
