import type { Subly402ClientConfig, Subly402Signer } from "./types";
type FetchLike = (input: string | URL, init?: RequestInit) => Promise<Response>;
export declare class Subly402Client {
    private readonly trustedFacilitators;
    private readonly maxPaymentPerRequest?;
    private readonly autoDeposit?;
    private readonly nitroAttestation;
    private readonly attestationVerifier;
    private readonly attestationCache;
    private readonly schemes;
    private defaultScheme?;
    constructor(config?: Subly402ClientConfig);
    register(network: string, scheme: Subly402ExactScheme): this;
    fetch(input: string | URL, options?: RequestInit, fetchImpl?: FetchLike): Promise<Response>;
    private findSchemeForNetwork;
    private assertBudget;
    private depositOnDemand;
    private verifyAttestation;
    private buildPaymentPayload;
}
export declare class Subly402ExactScheme {
    readonly signer: Subly402Signer;
    readonly scheme = "exact";
    readonly wireScheme = "subly402-svm-v1";
    constructor(signer: Subly402Signer);
}
export declare function wrapFetchWithSubly402Payment(fetchImpl: FetchLike, client: Subly402Client): FetchLike;
export {};
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