/**
 * The underscore module provides a function to convert a string to underscore case.
 *
 * @module
 */
import { type UnderScoreOptions } from "@bearz/slices/underscore";
/**
 * Converts the string to underscore case, generally from camel or pascal
 * case identifiers.
 * @param value The value to convert.
 * @param options The underscore conversion options.
 * @returns The string in underscore case.
 */
export declare function underscore(value: string, options?: UnderScoreOptions): string;