'Uses **kwargs:
effort:  effor information
video : video link'

@classmethod
def _create(cls, target_class, **kwargs):

    user_id = kwargs.pop('user_id', None)
    (course_id, course_runtime) = (kwargs.pop('course_id'), kwargs.pop('course_runtime'))
    store = kwargs.pop('modulestore')
    for about_key in ABOUT_ATTRIBUTES:
        about_item = store.create_xblock(course_runtime, course_id, 'about', about_key)
        about_item.data = ABOUT_ATTRIBUTES[about_key]
        store.update_item(about_item, user_id, allow_not_found=True)
    about_item = store.create_xblock(course_runtime, course_id, 'about', 'video')
    about_item.data = 'www.youtube.com/embed/testing-video-link'
    store.update_item(about_item, user_id, allow_not_found=True)
