# File lib/fog/volume/openstack/models/volumes.rb, line 7
        def all(options = {})
          # the parameter has been "detailed = true" before. Make sure we are
          # backwards compatible
          detailed = options.kind_of?(Hash) ? options.delete(:detailed) : options
          if detailed.nil? || detailed
            # This method gives details by default, unless false or {:detailed => false} is passed
            load_response(service.list_volumes_detailed(options), 'volumes')
          else
            Fog::Logger.deprecation('Calling OpenStack[:volume].volumes.all(false) or volumes.all(:detailed => false) '\
                                    ' is deprecated, call .volumes.summary instead')
            load_response(service.list_volumes(options), 'volumes')
          end
        end