code: function(options, callback) {
      request({
        method: 'post',
        url: options.url,
        headers: {
          'Authorization': 'Bearer ' + access_token,
          'Content-Type': 'application/x-www-form-urlencoded'
        },
        form: options.data
      },
      function(error, response, body) {
        callback(error, body);
      });
    }
docs: Makes a POST request to the API with options.
  
  @private
  @param  {Object}   options  Options that includes the `url` to POST and
  `data` object to include in POST request.
  
  @param  {Function} callback Function to callback with response.