import { Address, Hex } from 'viem';
import { GetLinkTransferResponse, PrexUser, TransferByLinkResponse } from '../types';
import { PrexSigner } from '../core/sign';
import { PrexApiService } from '../api';
import { PrexClient } from '../prex-client';
import { PrexStorage } from '../storage/PrexStorage';
import { Logger } from '../utils/logger';
export declare class TransferByLinkAction {
    private client;
    private apiService;
    private storage;
    private logger;
    private user?;
    private signer?;
    constructor(client: PrexClient, apiService: PrexApiService, storage: PrexStorage, logger: Logger, user?: PrexUser | undefined, signer?: PrexSigner | undefined);
    transferByLink({ token, amount, expiration, metadata, sender: senderParam, }: {
        token: Address;
        amount: bigint;
        expiration: number;
        metadata?: Record<string, string>;
        sender?: Address;
    }): Promise<TransferByLinkResponse>;
    getLinkTransferBySecret(secret: string): Promise<GetLinkTransferResponse | null>;
    getLinkTransfer(id: string): Promise<GetLinkTransferResponse | null>;
    receiveLinkTransfer(params: {
        secret: string;
        recipient?: Address;
    }): Promise<{
        hash: Hex;
    }>;
}
export declare function signLinkTransfer(signer: PrexSigner, token: Address, sender: Address, amount: bigint, nonce: bigint, expiration: number, metadata?: Record<string, string>): Promise<{
    id: string;
    signature: `0x${string}`;
    secret: string;
    request: `0x${string}`;
}>;
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