Simple Telegram Bot/SlackBridge Not working - Errors out.

This code for Telegram seems to just error out in rocket Chat (latest). Seperately SlackBridge does not seem to work either.
(https://docs.rocket.chat/use-rocket.chat/workspace-administration/integrations/telegram)

class Script {
    addQuotePrefix(str) {
        let tmp = str.split('\n'),
            res = [];

        for (const frag of tmp) {
            res.push(`> ${frag}`);
        }

        return res.join('\n');
    }

    process_incoming_request({ request }) {
        // UNCOMMENT THE BELOW LINE TO DEBUG IF NEEDED.
        // console.log(request.content);
        if ('edited_message' in request.content) {
            request.content.message = request.content.edited_message;
        }
        let from = request.content.message.from;
        let who = from.username
        let icon_url = '/avatar/' + from.username + '.jpg'
        if(!who)  {
          if (from.first_name && from.last_name) {
            who = `${from.first_name} ${from.last_name}`
          } else if (from.first_name) {
            who = from.first_name
          } else {
            who = from.last_name
          }
          icon_url = `/avatar/${request.content.message.from.first_name}.jpg`
        }
        let body = request.content.message.text

        if(!body) {
          if(request.content.message.hasOwnProperty("sticker") && request.content.message.sticker.emoji) {
            // It's a sticker
            body = request.content.message.sticker.emoji
        } else {
           return {}
          }
        }

        if(request.content.message.reply_to_message) {
              var quotedMessage = 
                "*" +
                request.content.message.reply_to_message.from.username +
                "*\n" +
                request.content.message.reply_to_message.text;

              quotedMessage = this.addQuotePrefix(quotedMessage);
            body = quotedMessage + '\n' + body;
        }

        return {
            content: {
                username: who,
                icon_url: icon_url,
                text: body
            }
        };
    }
}

error log:

{"level":50,"time":"2023-06-28T00:28:01.091Z","pid":1,"hostname":"9afe5c84840a","name":"Integrations","section":"Incoming WebHook","msg":"Error running Script in Trigger","integration":"Telegram_Hub","script":"function _createForOfIteratorHelperLoose(o,allowArrayLike){var it=typeof Symbol!=="undefined"&&o[Symbol.iterator]||o["@@iterator"];if(it)return(it=it.call(o)).next.bind(it);if(Array.isArray(o)||(it=_unsupportedIterableToArray(o))||allowArrayLike&&o&&typeof o.length==="number"){if(it)o=it;var i=0;return function(){if(i>=o.length)return{done:true};return{done:false,value:o[i++]}}}throw new TypeError("Invalid attempt to iterate non-iterable instance.<br>In order to be iterable, non-array objects must have a Symbol.iterator method.")}function _unsupportedIterableToArray(o,minLen){if(!o)return;if(typeof o==="string")return _arrayLikeToArray(o,minLen);var n=Object.prototype.toString.call(o).slice(8,-1);if(n==="Object"&&o.constructor)n=o.constructor.name;if(n==="Map"||n==="Set")return Array.from(o);if(n==="Arguments"||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n))return _arrayLikeToArray(o,minLen)}function _arrayLikeToArray(arr,len){if(len==null||len>arr.length)len=arr.length;for(var i=0,arr2=new Array(len);i<len;i++)arr2[i]=arr[i];return arr2}var Script=function(){function Script(){}var _proto=Script.prototype;_proto.addQuotePrefix=function addQuotePrefix(str){var tmp=str.split("<br>"),res=[];for(var _iterator=_createForOfIteratorHelperLoose(tmp),_step;!(_step=_iterator()).done;){var frag=_step.value;res.push("> "+frag)}return res.join("<br>")};_proto.process_incoming_request=function process_incoming_request(_ref){var request=_ref.request;if("edited_message"in request.content){request.content.message=request.content.edited_message}var from=request.content.message.from;var who=from.username;var icon_url="/avatar/"+from.username+".jpg";if(!who){if(from.first_name&&from.last_name){who="${from.first_name} ${from.last_name}"}else if(from.first_name){who=from.first_name}else{who=from.last_name}icon_url="/avatar/${request.content.message.from.first_name}.jpg"}var body=request.content.message.text;if(!body){if(request.content.message.hasOwnProperty("sticker")&&request.content.message.sticker.emoji){body=request.content.message.sticker.emoji}else{return{}}}if(request.content.message.reply_to_message){var quotedMessage=""+request.content.message.reply_to_message.from.username+"<br>"+request.content.message.reply_to_message.text;quotedMessage=this.addQuotePrefix(quotedMessage);body=quotedMessage+"<br>"+body}return{content:{username:who,icon_url:icon_url,text:body}}};return Script}();","err":{"type":"Error","message":"TypeError: Cannot read property 'from' of undefined","stack":"Error: TypeError: Cannot read property 'from' of undefined
at vm.js:11:33
at VM2 Wrapper.apply (/app/bundle/programs/server/npm/node_modules/vm2/lib/bridge.js:485:11)
at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40"},"msg":"TypeError: Cannot read property 'from' of undefined"}

Start with the Telegram integration documentation and the process_incoming_request entry point shown in the script, then inspect the incoming request shape around the vm.js:11 error. Reproduce the Telegram failure and separately check SlackBridge; done means both integrations process their incoming requests without the reported errors.