import { type Hex } from "@metamask/utils";
import type { TransactionPayControllerMessenger } from "../index.cjs";
import type { UpdateTransactionDataCallback } from "../types.cjs";
export type UpdatePaymentTokenRequest = {
    transactionId: string;
    tokenAddress: Hex;
    chainId: Hex;
};
export type UpdatePaymentTokenOptions = {
    messenger: TransactionPayControllerMessenger;
    updateTransactionData: UpdateTransactionDataCallback;
};
/**
 * Update the payment token for a specific transaction.
 *
 * @param request  - Request parameters.
 * @param options - Options bag.
 */
export declare function updatePaymentToken(request: UpdatePaymentTokenRequest, options: UpdatePaymentTokenOptions): void;
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