import type { Chain, Network } from "@wormhole-foundation/sdk-base";
import type { GatewayTransferMsg, GatewayTransferWithPayloadMsg, IbcBridge, IbcMessageId, IbcTransferInfo, TokenBridge, TransactionId, TxHash } from "@wormhole-foundation/sdk-definitions";
export type Task<T> = () => Promise<T | null>;
export declare function retry<T>(task: Task<T>, interval: number, timeout?: number, title?: string): Promise<T | null>;
export declare function isTokenBridgeVaaRedeemed<N extends Network, C extends Chain>(tb: TokenBridge<N, C>, vaa: TokenBridge.TransferVAA): Promise<boolean | null>;
export declare function fetchIbcXfer<N extends Network, C extends Chain>(wcIbc: IbcBridge<N, C>, msg: TxHash | TransactionId | IbcMessageId | GatewayTransferMsg | GatewayTransferWithPayloadMsg): Promise<IbcTransferInfo[] | null>;
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