export declare const SIGNATURE_METHOD = "HMAC-SHA256";
export declare function percentEncode(str: string): string;
export declare function getTbaMetaParams(): {
    nonce: string;
    timestamp: string;
};
export declare function generateSignature({ baseString, clientSecret, tokenSecret }: {
    baseString: string;
    clientSecret: string;
    tokenSecret: string;
}): string;
export declare function generateBaseString({ method, url, params }: {
    method: string;
    url: string;
    params: Record<string, string>;
}): string;
