'Create a video component and navigate to unit page
Arguments:
subtitles (bool): Upload subtitles or not
subtitle_id (str): subtitle file id'

def _create_video_component(self, subtitles=False, subtitle_id='3_yD_cEKoCk'):

    if subtitles:
        self.assets.append('subs_{}.srt.sjson'.format(subtitle_id))
    self.navigate_to_course_unit()
