def options
      options = {}
      @entries.each do |type, (key, value)|
        options[key] = value unless type == :arg
      end
      options
    end
def options
      options = {}
      @entries.each do |type, (key, value)|
        options[key] = value unless type == :arg
      end
      options
    end
@return [Hash] A hash that consists of the remaining flags and options
         and their values.

 @example

   argv = CLAide::ARGV.new(['tea', '--no-milk', '--sweetener=honey'])
   argv.options # => { 'milk' => false, 'sweetener' => 'honey' }