def METHOD_NAME(annotation, api_key):
    ''' Takes annotation dict and api_key string'''
    base_url = 'https://api.circonus.com/v2'
    anootate_post_endpoint = '/annotation'
    resp = requests.post(base_url + anootate_post_endpoint,
                         headers=build_headers(api_key), data=json.dumps(annotation))
    resp.raise_for_status()
    return resp