async/await support

[Erfa]

Does this wrapper support the async/await pattern? I tried it, but it doesn't seem like so. I ended up creating a small layer around it to solve it, like this:

export const challongeApi = {
  createTournament: async (tournament): => {
    return new Promise(
      (resolve, reject) => {
        client.tournaments.create({
          tournament: tournament,
          callback: (err, data) => {
            if (err)
              reject(err)
            else
              resolve(data)
          }
        });
     }
   );
  }
}