export type AttributorConfig = {
    url: string;
    token: string;
};
export type AttributorHeaders = {
    POLY_BUILDER_API_KEY: string;
    POLY_BUILDER_PASSPHRASE: string;
    POLY_BUILDER_SIGNATURE: string;
    POLY_BUILDER_TIMESTAMP: string;
};
export declare class Attributor {
    readonly url: string;
    private readonly token;
    constructor(config: AttributorConfig);
    sign({ method, path, body, timestamp }: {
        method: string;
        path: string;
        body: string | undefined;
        timestamp: string | undefined;
    }): Promise<AttributorHeaders>;
}
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