add experimental headless exports

packages/x-data-grid-premium/src/DataGridPremium/index.ts

@@ -1,3 +1,4 @@
 export * from './DataGrid';
 export * from './DataGridPremium';
+export { GridSlots } from './DataGridPremiumHeadless';
 export { DATA_GRID_PREMIUM_PROPS_DEFAULT_VALUES } from './useDataGridPremiumProps';

packages/x-data-grid-premium/src/constants/dataGridPremiumDefaultSlotsComponents.ts

@@ -1,10 +1,20 @@
-import { DATA_GRID_PRO_DEFAULT_SLOTS_COMPONENTS } from '@mui/x-data-grid-pro/internals';
+import {
+  DATA_GRID_PRO_DEFAULT_SLOTS_COMPONENTS,
+  generateDefaultSlots,
+} from '@mui/x-data-grid-pro/internals';
 import type { GridPremiumSlotsComponent } from '../models';
 import { GridPremiumColumnMenu } from '../components/GridPremiumColumnMenu';
-import materialSlots from '../material';
+
+const iconsSlots: Array<keyof GridPremiumSlotsComponent> = [
+  'columnMenuUngroupIcon',
+  'columnMenuGroupIcon',
+  'columnMenuAggregationIcon',
+  'toolbarPromptSendIcon',
+  'toolbarPromptRecordIcon',
+];
 
 export const DATA_GRID_PREMIUM_DEFAULT_SLOTS_COMPONENTS: GridPremiumSlotsComponent = {
   ...DATA_GRID_PRO_DEFAULT_SLOTS_COMPONENTS,
-  ...materialSlots,
+  ...generateDefaultSlots<keyof GridPremiumSlotsComponent>(iconsSlots),
   columnMenu: GridPremiumColumnMenu,
 };

packages/x-data-grid-premium/src/headless/index.ts

@@ -0,0 +1 @@
+export { DataGridPremiumHeadless as Unstable_DatagridPremium } from '../DataGridPremium/DataGridPremiumHeadless';