code: function getPhotoUrl(data) {
      return FLICK_PHOTO_URL_TEMPLATE
          .replace('{farm-id}', data.farm)
          .replace('{server-id}', data.server)
          .replace('{id}', data.id)
          .replace('{secret}', data.secret)
          .replace('{size}', 'm');
  }
docs: Build url for a photo.
  
  @see ../../tests/examples/api/get-kittens.test.js Tests for the API method.
  @param {Object} data Data for the flickr photo.
  @return {String}