IRC -> Slack direction no longer works about slack-irc HOT 7 OPEN

--- a/lib/bot.js	2021-08-27 23:34:32.622846730 -0700
+++ b/lib/bot.js	2021-08-27 23:34:28.351824023 -0700
@@ -254,27 +254,29 @@
         return;
       }
 
-      const currentChannelUsernames = slackChannel.members.map(member =>
-        dataStore.getUserById(member).name
-      );
+      this.slack.web.conversations.members(slackChannel.id).then( resp => {
+        const currentChannelUsernames = resp.members.map(member =>
+          dataStore.getUserById(member).name
+        );
 
-      const mappedText = currentChannelUsernames.reduce((current, username) =>
-        highlightUsername(username, current)
-      , text);
+        const mappedText = currentChannelUsernames.reduce((current, username) =>
+          highlightUsername(username, current)
+        , text);
 
-      let iconUrl;
-      if (author !== this.nickname && this.avatarUrl) {
-        iconUrl = this.avatarUrl.replace(/\$username/g, author);
-      }
+        let iconUrl;
+        if (author !== this.nickname && this.avatarUrl) {
+          iconUrl = this.avatarUrl.replace(/\$username/g, author);
+        }
 
-      const options = {
-        username: this.slackUsernameFormat.replace(/\$username/g, author),
-        parse: 'full',
-        icon_url: iconUrl
-      };
+        const options = {
+          username: this.slackUsernameFormat.replace(/\$username/g, author),
+          parse: 'full',
+          icon_url: iconUrl
+        };
 
-      logger.debug('Sending message to Slack', mappedText, channel, '->', slackChannelName);
-      this.slack.web.chat.postMessage(slackChannel.id, mappedText, options);
+        logger.debug('Sending message to Slack', mappedText, channel, '->', slackChannelName);
+        this.slack.web.chat.postMessage(slackChannel.id, mappedText, options);
+      });
     }
   }
 }

/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:849
                        throw err;
                        ^

TypeError: Cannot read property 'map' of undefined
    at Bot.sendToSlack (/usr/lib/node_modules/slack-irc/dist/bot.js:295:60)
    at emitMany (events.js:147:13)
    at Client.emit (events.js:224:7)
    at Client.<anonymous> (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:557:22)
    at emitOne (events.js:116:13)
    at Client.emit (events.js:211:7)
    at iterator (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:846:26)
    at Array.forEach (<anonymous>)
    at Socket.handleData (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:841:15)
    at emitOne (events.js:116:13)
    at Socket.emit (events.js:211:7)
    at addChunk (_stream_readable.js:263:12)
    at readableAddChunk (_stream_readable.js:246:13)
    at Socket.Readable.push (_stream_readable.js:208:10)
    at TCP.onread (net.js:601:20)