export type XOptions = null | {
    readonly keys?: null | RegExp;
    readonly order?: boolean;
    readonly exact?: boolean;
    readonly multi?: boolean;
    readonly longer?: boolean;
    readonly string?: boolean;
    readonly comment?: boolean;
    readonly literal?: boolean;
    readonly null?: boolean;
    readonly tag?: null | (<Table extends object & {
        [key: string | symbol]: any;
    }, Key extends string | symbol, Array extends any[], Index extends number, Tag extends string>(this: void, each: {
        table: Table;
        key: Key;
        tag: Tag;
    } | {
        array: Array;
        index: Index;
        tag: Tag;
    } | {
        table: Table;
        key: Key;
        array: Array;
        index: Index;
        tag: Tag;
    }) => void);
};
export interface TomlReadOptions {
    specificationVersion?: 1.0 | 0.5 | 0.4 | 0.3 | 0.2 | 0.1;
    multilineStringJoiner?: string;
    useBigInt?: boolean | number;
    xOptions?: XOptions;
}
/**
 * Reads a TOML file and returns the object the TOML content represents.
 *
 * @param path - A path to a file.
 * @param options - TOML parse options
 * @returns Object the TOML content of the file represents
 */
export declare function readTomlFileSync<T extends object = any>(path: string, options?: TomlReadOptions): T;
/**
 * Reads a TOML file and returns the object the TOML content represents.
 *
 * @param path - A path to a file.
 * @param options - TOML parse options
 * @returns Object the TOML content of the file represents
 */
export declare function readTomlFile<T extends object = any>(path: string, options?: TomlReadOptions): Promise<T>;
export interface TomlWriteOptions {
    integer?: number;
    newline?: "\n" | "\r\n";
    newlineAround?: "document" | "section" | "header" | "pairs" | "pair";
    indent?: string | number;
    T?: "T" | "t" | " ";
    Z?: "Z" | "z";
    xNull?: boolean;
    xBeforeNewlineInMultilineTable?: "," | "";
    forceInlineArraySpacing?: 0 | 1 | 2 | 3;
}
/**
 * Reads a TOML file and returns the object the TOML content represents.
 *
 * @param path - A path to a file.
 * @param data - data which should be serialized/formatted to TOML and written to the file
 * @param options - TOML parse options
 */
export declare function writeTomlFileSync<T extends object = any>(path: string, data: T, options?: TomlWriteOptions): void;
/**
 * Reads a TOML file and returns the object the TOML content represents.
 *
 * @param path - A path to a file.
 * @param data - data which should be serialized/formatted to TOML and written to the file
 * @param options - TOML parse options
 */
export declare function writeTomlFile<T extends object = any>(path: string, data: T, options?: TomlWriteOptions): Promise<void>;