code: function prepare(data, consumerkey) {
  	var prop;
  	data = data || {};
  
  	for (prop in data) {
  		if (data.hasOwnProperty(prop)) {
  			if (_.isDate(data[prop])) {
  				data[prop] = helpers.toYYYYMMDD(data[prop]);
  			}
  		}
  	}
  
  	data.oauth_consumer_key = consumerkey;
  
  	return data;
  }
docs: Formats request parameters as expected by the API.  - @param {Object} data - hash of pararameters - @param {String} consumerkey - consumer key - @return {String} - Encoded parameter string