# File lib/yard/options.rb, line 187
    def reset_defaults
      names_set = {}
      self.class.ancestors.each do |klass| # look at all ancestors
        defaults = klass.instance_variable_get("@defaults")
        next unless defaults
        defaults.each do |key, value|
          next if names_set[key]
          names_set[key] = true
          self[key] = Proc === value ? value.call : value
        end
      end
    end