import { Versioned } from './versioned';
import { CredentialSchema } from './schema';
/**
 * Common fields and methods of Credential and BlindedCredential
 */
export declare abstract class CredentialCommon<Sig> extends Versioned {
    /** Each credential references the schema which is included as an attribute */
    readonly schema: CredentialSchema;
    readonly subject: object | object[];
    readonly credentialStatus?: object;
    readonly topLevelFields: Map<string, unknown>;
    readonly signature: Sig;
    constructor(version: string, schema: CredentialSchema, subject: object, topLevelFields: Map<string, unknown>, sig: Sig, credStatus?: object);
    getTopLevelField(name: string): unknown;
    toJSON(): object;
    protected static parseJSON(j: object, proofValue?: string): [string, CredentialSchema, object, Map<string, unknown>, Uint8Array, object];
    /**
     * A credential will have at least some proof metadata like the type or purpose. This adds those defaults to the
     * given object.
     * @param _s
     */
    static applyDefaultProofMetadataIfNeeded(_s: object): void;
    protected static validateProofType(_typ: string): void;
}
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