import { type FetchLike, type RpcClient } from "./index.js";
export type TransactionObservation = Readonly<{
    state: "unknown";
    transactionId: string;
}> | Readonly<{
    state: "locally_applied";
    transactionId: string;
    irreversibleBlock: number;
}> | Readonly<{
    state: "in_block";
    transactionId: string;
    blockNumber: number;
    irreversibleBlock: number;
}> | Readonly<{
    state: "irreversible";
    transactionId: string;
    blockNumber: number;
    irreversibleBlock: number;
}> | Readonly<{
    state: "failed";
    transactionId: string;
    irreversibleBlock: number;
}> | Readonly<{
    state: "forked_out";
    transactionId: string;
    irreversibleBlock: number;
}>;
export declare function isSpringTransactionStatusUnsupported(error: unknown): boolean;
export declare class SpringFinalityClient {
    readonly rpc: RpcClient;
    constructor(rpc: RpcClient);
    getTransactionStatus(id: string, signal?: AbortSignal): Promise<TransactionObservation>;
}
export declare class HyperionError extends Error {
    readonly status?: number;
    readonly url: string;
    constructor(message: string, url: string, status?: number, options?: ErrorOptions);
}
export type HyperionClientOptions = {
    endpoint: string;
    fetch?: FetchLike;
    timeoutMs?: number;
    maxResponseBytes?: number;
};
export declare class HyperionClient {
    #private;
    readonly endpoint: string;
    constructor(options: HyperionClientOptions);
    health(signal?: AbortSignal): Promise<Readonly<Record<string, string>>>;
    assertAvailable(signal?: AbortSignal): Promise<void>;
    getTransaction(id: string, signal?: AbortSignal): Promise<TransactionObservation>;
}
/** Spring is authoritative while it tracks a transaction; Hyperion is used only for unknown/unsupported history. */
export declare class AntelopeTransactionHistory {
    readonly spring: SpringFinalityClient;
    readonly hyperion: HyperionClient;
    constructor(spring: SpringFinalityClient, hyperion: HyperionClient);
    getTransaction(id: string, signal?: AbortSignal): Promise<TransactionObservation>;
}
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