# File lib/slave.rb, line 87
      def getopts(opts)
        raise ArgumentError, opts.class unless
          opts.respond_to?('has_key?') and opts.respond_to?('[]')

        lambda do |key, *defval|
          defval = defval.shift
          keys = [key, key.to_s, key.to_s.intern]
          key = keys.detect{|k| opts.has_key? k } and break opts[key]
          defval
        end
      end