import { WritableSignal } from '@angular/core';
import { ColumnDefinition } from 'verben-ng-ui/src/lib/components/data-table';
import * as i0 from "@angular/core";
export declare class DataImportService<T> {
    importedData: WritableSignal<T[]>;
    constructor();
    transformImportData<T>(importedData: Record<string, any>[], columnDefinitions: ColumnDefinition<T>[]): Partial<T>[];
    handleImport(file: File, columnDefinitions: ColumnDefinition<T>[], parseImport?: (data: any) => Partial<T>[]): void;
    handleTemplateExport(fields: string[], title: string): void;
    addRow(event: {
        index: number;
        key: string | number;
        data: Partial<T>;
    }): void;
    isDuplicate(datum: Partial<T>, array: Partial<T>[], identifiers: string[]): boolean;
    clearData(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DataImportService<any>, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DataImportService<any>>;
}