code: function(options) {
          // Support for `TumblrClient(credentials, baseUrl, requestLibrary)`
          if (arguments.length > 1) {
              options = {
                  credentials: arguments[0],
                  baseUrl: arguments[1],
                  request: arguments[2],
                  returnPromises: false,
              };
          }
  
          // Create the Tumblr Client
          const client = new TumblrClient(options);
  
          return client;
      }
docs: Creates a Tumblr Client
  
  @param  {Object} [options] - client options
  @param  {Object} [options.credentials] - OAuth credentials
  @param  {string} [options.baseUrl] - API base URL
  @param  {Object} [options.request] - library to use for making requests
  
  @return {TumblrClient} {@link TumblrClient} instance
  
  @memberof tumblr
  @see {@link TumblrClient}