Task: Create a website screenshot and send via Telegram Channel

n8n workflow JSON:
{"id":"191","name":"Create a screenshot of a website and send it to a telegram channel","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Telegram","type":"n8n-nodes-base.telegram","position":[650,300],"parameters":{"file":"={{$node[\"uProc\"].json[\"message\"][\"result\"]}}","chatId":"","operation":"sendPhoto","additionalFields":{}},"credentials":{"telegramApi":"Telegram n8n bot"},"typeVersion":1},{"name":"uProc","type":"n8n-nodes-base.uproc","position":[450,300],"parameters":{"url":"https://n8n.io","tool":"getUrlScreenshot","group":"image","width":"1024","fullpage":"yes","additionalOptions":{}},"credentials":{"uprocApi":"uProc credentials"},"typeVersion":1}],"active":false,"settings":{},"connections":{"uProc":{"main":[[{"node":"Telegram","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"uProc","type":"main","index":0}]]}}}