import { CredentialResolver, IssuerResolver } from '.';
import { VerificationResult } from './models';
import { VerifiableCredential } from '@ew-did-registry/credentials-interface';
import type { RoleCredentialSubject } from '@energyweb/credential-governance';
/**
 * A class to verify chain of trust for a Verifiable Credential
 * The hierachy must only consist of VC issuance
 */
export declare class VCIssuerVerification {
    private issuerResolver;
    private credentialResolver;
    private verifyProof;
    constructor(issuerResolver: IssuerResolver, credentialResolver: CredentialResolver, verifyProof: (vc: string, proof_options: string) => Promise<any>);
    /**
     * Verifies that `issuer` is authorized to issue `role`
     *
     * ```typescript
     * const issuerVerification = new VCIssuerVerification(
     * issuerResolver,
     * credentialResolver,
     * verifyCredential
     * );
     * await issuerVerification.verifyIssuer('issuerDID', 'role');
     * ```
     * @param issuer DID of the issuer
     * @param role name of the role verifiable credential
     * @returns VerificationResult
     */
    verifyIssuer(issuer: string, role: string): Promise<VerificationResult>;
    /**
     * Verifies that `role` credential was issued to `subject`
     * @param subject DID of the subject
     * @param role name of the role credential
     * @returns verified role credential
     */
    verifyIssuance(subject: string, role: string): Promise<VerifiableCredential<RoleCredentialSubject>>;
    /**
     * Verifies that issuer has required `role` credential
     * @param issuer DID of revoker
     * @param role name of the role credential
     */
    private verifyIssuerCredential;
}