Multiple inheritance in Meteor (client and server)

I want to create a class which extends multiple classes.

class Scheduler extends mixin(EventEmitter, Mongo.Collection) {
  // omit some stuff for brevity: below is sample function with emit.
  add(id) {
    check(id, String);
    this.upsert({
      count: { $lt: this.config.limit }
    }, {
      $addToSet: {
        queue: id
      },
      $setOnInsert: {
        queue: [],
        count: 0
      }
    }, (err, result) => {
      if (!err && result.insertedId) {
         this.emit('cycle created', result.insertedId);
      }
    });
  }
}

Is this possible with Meteor? It’s easy to do serverside, but I can’t find the right way to do it on both client and server