# File lib/fog/google/models/storage/files.rb, line 22
        def all(options = {})
          requires :directory
          options = {
            'delimiter'   => delimiter,
            'marker'      => marker,
            'max-keys'    => max_keys,
            'prefix'      => prefix
          }.merge!(options)
          options = options.reject {|key,value| value.nil? || value.to_s.empty?}
          merge_attributes(options)
          parent = directory.collection.get(
            directory.key,
            options
          )
          if parent
            merge_attributes(parent.files.attributes)
            load(parent.files.map {|file| file.attributes})
          else
            nil
          end
        end