code: function(node, options) {
  			this.init();
  			options = (options)? options : {};
  
  			if(node){
  				return this.getParentTreeWalk(node, options);
  			}else{
  				this.errors.push(this.noContentErr);
  				return this.formatError();
  			}
  		}
docs: parse to get parent microformat of passed node
  
  @param  {DOM Node} node
  @param  {Object} options
  @return {Object}