# File lib/aws/core/xml/frame.rb, line 143
        def keys_from_path data, path, &block

          step = path.shift
          value = data[step]

          if path.empty?
            yield(value)
            return
          end

          if value.is_a?(Array)
            value.each do |v|
              keys_from_path(v, path.dup, &block)
            end
          else
            keys_from_path(value, path.dup, &block)
          end

        end