import { Contract, providers, BigNumber } from 'ethers';
import { DelegateTypes, IAuthentication, IDIDDocument, IDIDLogData, IPublicKey, IResolver, IServiceEndpoint, RegistrySettings, DocumentSelector } from '@ew-did-registry/did-resolver-interface';
/**
 * To support different methods compliant with ERC1056, the user/developer simply has to provide
 * different resolver settings. The default resolver settings are provided in the 'constants' folder
 * Any settings that follow the IResolverSettings interface are valid.
 *
 * The read functionality is implemented in Resolver class. If one wants to adjust it or create her
 * own implementation (for example according to ERC725), one could use this class as a
 * starting point.
 * All the functionality supporting document resolution is stored in 'functions' folder.
 */
declare class Resolver implements IResolver {
    /**
     * Stores resolver settings, such as abi, contract address, and IProvider
     */
    readonly settings: Required<RegistrySettings>;
    /**
     * Stores the provider to connect to blockchain
     */
    protected readonly _provider: providers.Provider;
    /**
     * Stores the smart contract instance with read functionality available
     */
    protected _contract: Contract;
    /**
     * Constructor
     *
     * @param settings - Settings to connect to Ethr registry
     * @param provider - Ethers provider. Can be obtained from getProvider(providerSettings)
     */
    constructor(provider: providers.Provider, settings: RegistrySettings);
    /**
     * Resolve DID Document for a given did
     *
     * @example
     * ```typescript
     * import { Resolver } from '@ew-did-registry/did-resolver';
     *
     * const resolver = new Resolver(provider, resolverSettings);
     * const didDocument = await resolver.read(did);
     * ```
     *
     * @param did - entity identifier, which is associated with DID Document
     * @returns {Promise<IDIDDocument>}
     */
    private _read;
    read(did: string): Promise<IDIDDocument>;
    readAttribute(did: string, selector: DocumentSelector): Promise<IPublicKey | IServiceEndpoint | IAuthentication | undefined>;
    /**
     * Returns the Ethereum address of current identity owner
     *
     * @param { string } did - did of identity of interest
     * @returns Promise<string>
     */
    identityOwner(did: string): Promise<string>;
    /**
     * Performs the check if the delegate is valid for particular did
     * Return boolean
     *
     * @param { string } identityDID - did of identity of interest
     * @param { DelegateTypes } delegateType - type of delegate of interest
     * @param { delegateDID } did - did of delegate of interest
     * @returns Promise<boolean>
     */
    validDelegate(identityDID: string, delegateType: DelegateTypes, delegateDID: string): Promise<boolean>;
    readOwnerPubKey(did: string): Promise<string | undefined>;
    readFromBlock(did: string, topBlock: BigNumber): Promise<IDIDLogData>;
    lastBlock(did: string): Promise<BigNumber>;
}
export default Resolver;