    # File lib/fog/ibm/requests/storage/create_volume.rb, line 47
            def create_volume(name, offering_id, format, location_id, size)
              volume          = Fog::IBM::Mock.create_volume(name, offering_id, format, location_id, size)
              self.data[:volumes][volume['id']] = volume
              response        = Excon::Response.new
              response.status = 200
              response.body   = format_create_volume_response_for(volume['id'])
              response
            end