code: function transformSnippet(snippet, isImportant, syntax) {
  		if (typeof snippet !== 'string') {
  			snippet = snippet.data;
  		}
  		
  		if (!isSingleProperty(snippet)) {
  			return snippet;
  		}
  		
  		if (isImportant) {
  			if (~snippet.indexOf(';')) {
  				snippet = snippet.split(';').join(' !important;');
  			} else {
  				snippet += ' !important';
  			}
  		}
  		
  		return formatProperty(snippet, syntax);
  	}
docs: Transforms snippet value if required. For example, this transformation
  may add <i>!important</i> declaration to CSS property
  @param {String} snippet
  @param {Boolean} isImportant
  @returns {String}