# File lib/s3/key.rb, line 23
    def self.add_meta_prefix(meta_headers, prefix=S3Interface::AMAZON_METADATA_PREFIX)
      meta = {}
      meta_headers.each do |meta_header, value|
        if meta_header[/#{prefix}/]
          meta[meta_header] = value
        else
          meta["#{S3Interface::AMAZON_METADATA_PREFIX}#{meta_header}"] = value
        end
      end
      meta
    end