text: import { NgModule } from '@angular/core';
  import { IgxSummaryCellComponent } from './summary-cell.component';
  import { IgxSummaryRowComponent } from './summary-row.component';
  import { IgxSummaryDataPipe } from './grid-root-summary.pipe';
  import { IgxGridSharedModules } from '../common/shared.module';
  import { IgxGridPipesModule } from '../common/grid-pipes.module';
  
  
  @NgModule({
      declarations: [
          IgxSummaryCellComponent,
          IgxSummaryRowComponent,
          IgxSummaryDataPipe
      ],
      imports: [
          IgxGridPipesModule,
          IgxGridSharedModules
      ],
      exports: [
          IgxSummaryCellComponent,
          IgxSummaryRowComponent,
          IgxSummaryDataPipe
      ]
  })
  export class IgxGridSummaryModule {}
  