export type SignerOrKey = Uint8Array | SignMessageFn;
export type AuthorizationStore = {
    identifier: string;
    actions: {
        get: (identifier: string, options: Omit<GenerateOptions, "store">) => Promise<string | undefined> | string | undefined;
        set: (identifier: string, options: Omit<GenerateOptions, "store">, value: string | undefined) => void;
    };
};
export type GenerateHeaderOptions = GenerateOptions & {
    expiry: number;
    key: string;
};
export type ValidateOptions = {
    expiry: number;
    separator: string;
    expected_message?: string;
};
export type GenerateOptions = {
    includeTime: boolean;
    separator: string;
    /** Sign without reading or writing the authorization store. */
    skipCache?: boolean;
};
export type SignMessageFn = (message: Uint8Array) => Promise<Uint8Array>;
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