code: function( themeId ) {
  		const query = {
  			action: 'theme_information',
  			// Return an `author` object containing `user_nicename` and `display_name` attrs.
  			// This is for consistency with WP.com, which always returns the display name as `author`.
  			'request[fields][extended_author]': true,
  			'request[slug]': themeId,
  		};
  		return superagent
  			.get( WPORG_THEMES_ENDPOINT )
  			.set( 'Accept', 'application/json' )
  			.query( query )
  			.then( ( { body } ) => body );
  	}
docs: Get information about a given theme from the WordPress.org API.
  If provided with a callback, will call that on succes with an object with theme details.
  Otherwise, will return a promise.
  
  @param {string}     themeId  The theme identifier.
  @returns {Promise.<Object>}  A promise that returns a `theme` object