code: function(options, callback) {
      return WebApiRequest.builder(this.getAccessToken())
        .withPath('/v1/me/following')
        .withHeaders({ 'Content-Type': 'application/json' })
        .withQueryParameters(
          {
            type: 'artist'
          },
          options
        )
        .build()
        .execute(HttpManager.get, callback);
    }
docs: Get the current user's followed artists.
  @param {Object} [options] Options, being after and limit.
  @param {requestCallback} [callback] Optional callback method to be called instead of the promise.
  @returns {Promise|undefined} A promise that if successful, resolves to an object containing a paging object which contains
  album objects. Not returned if a callback is given.