code: function parseFile(filePath, encoding, callback) {
  	return fs.readFile(filePath, encoding, function(err, fileString) {
  		if (err) {
  			return callback(err);
  		}
  
  		fileString = expandIncludes(fileString, path.dirname(filePath));
  
  		return parse(fileString, callback);
  	});
  }
docs: Reads and parses a file into an Nginx Config object Expands file includes.