code: function getRequest(requestGet, credentials, baseUrl, apiPath, requestOptions, params, callback) {
      params = params || {};
  
      if (credentials.consumer_key) {
          params.api_key = credentials.consumer_key;
      }
  
      return requestGet(extend({
          url: baseUrl + apiPath + '?' + qs.stringify(params),
          oauth: credentials,
          json: true,
      }, requestOptions), requestCallback(callback));
  }
docs: Make a get request
  
  @param  {Function} requestGet - function that performs a get request
  @param  {Object} credentials - OAuth credentials
  @param  {string} baseUrl - base URL for the request
  @param  {string} apiPath - URL path for the request
  @param  {Object} requestOptions - additional request options
  @param  {Object} params - query parameters
  @param  {TumblrClient~callback} callback - request callback
  
  @return {Request} Request object
  
  @private