import { providers } from 'ethers';
import { RegistrySettings } from '@ew-did-registry/did-resolver-interface';
import { CredentialResolver, IssuerResolver } from '.';
import { RolePayload, VerificationResult } from './models';
/**
 * A class to verify chain of trust for an issued RoleEIP191Jwt
 * The hierachy must only consist of RoleEIP191Jwt issuance
 */
export declare class ClaimIssuerVerification {
    private _resolver;
    private _issuerDefResolver;
    private _credentialResolver;
    /**
     *
     * @param provider
     * @param registrySetting
     * @param credentialResolver
     * @param issuerDefResolver
     */
    constructor(provider: providers.Provider, registrySetting: RegistrySettings, credentialResolver: CredentialResolver, issuerDefResolver: IssuerResolver);
    /**
     * Verifies that `issuer` is authorized to issue `role` claim
     *
     * ```typescript
     * const issuerVerification = new ClaimIssuerVerification(
     * provider,
     * RegistrySettings,
     * credentialResolver,
     * issuerResolver
     * );
     * await issuerVerification.verifyIssuer('issuerDID', 'role');
     * ```
     * @param issuer DID of the issuer
     * @param role name of the role claim
     * @returns VerificationResult
     */
    verifyIssuer(issuer: string, role: string): Promise<VerificationResult>;
    /**
     * Verifies that `role` claim was issued to `subject`
     * @param subject DID of the subject
     * @param role name of the role claim
     * @returns valid RolePayload
     */
    verifyIssuance(subject: string, role: string): Promise<RolePayload | undefined>;
    /**
     * Verifies issuer's authority to issue credential for a namespace
     * @param {string} namespace
     * @param {string} issuerDID
     * @returns boolean
     *
     * @todo remove as duplicate of this.verifyIssuer
     */
    private verifyIssuerAuthority;
}