class keys():
    google='get_your_own'
    mapquest='get_your_own'
    
    yelp_ywsid='get_your_own'
    yelp_cons_key='get_your_own'
    yelp_cons_sec='get_your_own'
    yelp_tok='get_your_own'
    yelp_tok_sec='get_your_own'
