code: function addHandlers(reqOptions) {
  		reqOptions.success = cb => {
  			if (typeof cb === 'function')
  				reqOptions._onSuccess = cb;
  			else
  				throw Error('callback not passed to "success" method');
  			return reqOptions;
  		}
  
  		reqOptions.error = cb => {
  			if (typeof cb === 'function')
  				reqOptions._onError = cb;
  			else
  				throw Error('callback not passed to "error" method');
  			return reqOptions;
  		}
  		return reqOptions;
  	}
docs: /* Add Success/Error Handlers