docs: function resolveAsset (
  	  options,
  	  type,
  	  id,
  	  warnMissing
  	) {
  	  /* istanbul ignore if */
  	  if (typeof id !== 'string') {
  	    return
  	  }
  	  var assets = options[type];
  	  var res = assets[id] ||
  	    // camelCase ID
  	    assets[camelize(id)] ||
  	    // Pascal Case ID
  	    assets[capitalize(camelize(id))];
  	  if ("development" !== 'production' && warnMissing && !res) {
  	    warn(
  	      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
  	      options
  	    );
  	  }
  	  return res
  	}