diff --git a/packages/devextreme/js/__internal/grids/data_grid/m_core.ts b/packages/devextreme/js/__internal/grids/data_grid/m_core.ts
index 43159043c376..31470bf23f48 100644
--- a/packages/devextreme/js/__internal/grids/data_grid/m_core.ts
+++ b/packages/devextreme/js/__internal/grids/data_grid/m_core.ts
@@ -7,3 +7,6 @@ export default {
   ...gridCoreUtils,
   modules: [] as Module[],
 };
+
+// collaboration test
+// 123