import { OnInit } from '@angular/core';
import { CdkOverlayOrigin, Overlay, OverlayRef } from '@angular/cdk/overlay';
import { TemplatePortalDirective } from '@angular/cdk/portal';
import { TransferFilterData, TransferFilterItem } from '../interface';
import { NmTransferPickerService } from '../transfer-picker.service';
export declare class NmFilterComponent implements OnInit {
    private overlay;
    private service;
    overlayOrigin: CdkOverlayOrigin;
    filterTemplate: TemplatePortalDirective;
    overlayRef: OverlayRef;
    filters: Array<TransferFilterItem>;
    filterData: TransferFilterData;
    constructor(overlay: Overlay, service: NmTransferPickerService);
    ngOnInit(): void;
    toggleFilter(): void;
    onFilterClick(filter: any): void;
    onConditionChange(event: any): void;
    changeFilterData(): void;
}