This twitter bot is only for text and url tweet.
It uses two libraries. So, on the Library on GAS, please add those two libraries.
1: TwitterWebService Script ID: 1rgo8rXsxi1DxI_5Xgo_t3irTw1Y5cxl2mGSkbozKsSXf2E_KBBPC3xTF
2: OAuth1 Script ID: 1CXDCY5sqT9ph64fFwSzVtXnbjpSfWdRymafDrtIZ7Z_hwysTY7IIhi7s