export declare function write_csv_file(filename: string, records: object[], options?: {
    titles?: string[];
    separator?: string;
    delimiter?: string;
    wrap_line?: boolean;
    skip_titles?: boolean;
}): Promise<any>;
export declare function write_csv_file_sync(filename: string, records: object[], options?: {
    titles?: string[];
    separator?: string;
    delimiter?: string;
    wrap_line?: boolean;
    skip_titles?: boolean;
}): void;
export declare function read_csv_file(filename: string, options?: {
    separator?: string;
    delimiter?: string;
    wrap_line?: boolean;
}): AsyncGenerator<{
    [title: string]: string;
}, void, unknown>;
export declare function read_csv_file_sync(filename: string, options?: {
    separator?: string;
    delimiter?: string;
    wrap_line?: boolean;
}): Generator<{
    [title: string]: string;
}, void, unknown>;