# File lib/chef/file_cache.rb, line 177
      def has_key?(path)
        validate(
          {
            :path => path
          },
          {
            :path => { :kind_of => String },
          }
        )
        full_path = create_cache_path(path, false)
        if File.exists?(full_path)
          true
        else
          false
        end
      end