import { TabixIndexedFile } from '@gmod/tabix';
import VcfParser from '@gmod/vcf';
import { BaseFeatureDataAdapter } from '@jbrowse/core/data_adapters/BaseAdapter';
import type { BaseOptions } from '@jbrowse/core/data_adapters/BaseAdapter';
import type { Feature } from '@jbrowse/core/util';
import type { NoAssemblyRegion } from '@jbrowse/core/util/types';
export default class VcfTabixAdapter extends BaseFeatureDataAdapter {
    private configured?;
    private configurePre;
    protected configurePre2(): Promise<{
        vcf: TabixIndexedFile;
        parser: VcfParser;
    }>;
    configure(opts?: BaseOptions): Promise<{
        vcf: TabixIndexedFile;
        parser: VcfParser;
    }>;
    getRefNames(opts?: BaseOptions): Promise<string[]>;
    getHeader(opts?: BaseOptions): Promise<string>;
    getMetadata(opts?: BaseOptions): Promise<any>;
    getFeatures(query: NoAssemblyRegion, opts?: BaseOptions): import("rxjs").Observable<Feature>;
    getSources(): Promise<{
        name: string;
    }[]>;
    freeResources(): void;
}