Failed to fetch
Failed to fetch TypeError: Failed to fetch at wa.program_ (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:2424:272) at za (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:16:57) at wa.next_ (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:14:195) at kaa.next (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:17:48) at https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:17:463 at new Promise (<anonymous>) at laa (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:17:356) at z (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:18:22) at zZa (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:2424:50) at wa.program_ (https://ssl.gstatic.com/colaboratory-static/common/629c0c0894a411e1c2ceca4f346d8829/external_binary.js:2426:408)