import { MetadataRequest } from '@soul-wallet/extension-base/background/types';
import RequestService from '@soul-wallet/extension-base/services/request-service';
import { MetaRequest } from '@soul-wallet/extension-base/services/request-service/types';
import { MetadataDef } from '@soul-wallet/extension-inject/types';
import { BehaviorSubject } from 'rxjs';
export default class MetadataRequestHandler {
    #private;
    readonly metaSubject: BehaviorSubject<MetadataRequest[]>;
    constructor(requestService: RequestService);
    get knownMetadata(): MetadataDef[];
    get allMetaRequests(): MetadataRequest[];
    get numMetaRequests(): number;
    getMetaRequest(id: string): MetaRequest;
    saveMetadata(meta: MetadataDef): void;
    private updateIconMeta;
    private metaComplete;
    injectMetadata(url: string, request: MetadataDef): Promise<boolean>;
    resetWallet(): void;
}