code: function init() {
      /**
      * Get API key and secret.
      */
      var auth = utils.getAuth();
  
      /**
       * Set up the SDK.
       */
      sdk.utils.setup({
          key: auth.key,
          secret: auth.secret,
      });
  
      return {
          out: out,
          sdk: sdk,
      };
  }
docs: Initialize. This has placed in this separate file so as to
  avoid duplicate code all over.
  
  It simply does the following:
  1. `require()` the modules we will be using frequently (already done above)
  2. get API key and secret
  3. setup the SDK so we can use it immediately
  4. return an object containing modules from (1) above and the SDK module