def store(options)
      @options = self.options.merge(options)
      FileUtils.touch(@path)
      File.open(@path, 'w') do |file|
        YAML.dump(@options, file)
      end
    end
def store(options)
      @options = self.options.merge(options)
      FileUtils.touch(@path)
      File.open(@path, 'w') do |file|
        YAML.dump(@options, file)
      end
    end
Store the given options into the file. Existing options with the same keys
 will be overwritten.