def metadata
      log "retrieving container metadata from #{container_path}"
      response = storage_client.head(container_path)
      custom = {}
      response.each_capitalized_name { |name|
        custom[name] = response[name] if name[/\AX-Container-Meta-/]
      }
      {
        :objects => response["X-Container-Object-Count"].to_i,
        :bytes => response["X-Container-Bytes-Used"].to_i,
        :custom => custom,
      }
    end
def metadata
      log "retrieving container metadata from #{container_path}"
      response = storage_client.head(container_path)
      custom = {}
      response.each_capitalized_name { |name|
        custom[name] = response[name] if name[/\AX-Container-Meta-/]
      }
      {
        :objects => response["X-Container-Object-Count"].to_i,
        :bytes => response["X-Container-Bytes-Used"].to_i,
        :custom => custom,
      }
    end
Return some basic stats on the current container.