export interface VolcV4SignInput {
    method: string;
    host: string;
    path: string;
    query: Record<string, string | number | boolean | undefined>;
    headers: Record<string, string>;
    payload: string;
    ak_id: string;
    ak_secret: string;
    service: string;
    region: string;
}
export interface VolcV4SignResult {
    authorization: string;
    signed_headers_with_signature: Record<string, string>;
}
export declare function signVolcV4(input: VolcV4SignInput): VolcV4SignResult;
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