/**
 * @license
 * Copyright 2023 Nuraly, Laabidi Aymen
 * SPDX-License-Identifier: MIT
 */
import { LitElement } from 'lit';
type Constructor<T = {}> = new (...args: any[]) => T;
/**
 * Interface for components that support number operations
 */
export interface NumberCapable {
    /**
     * Increment the number value
     */
    increment(): void;
    /**
     * Decrement the number value
     */
    decrement(): void;
    /**
     * Set the step attribute for number inputs
     * @param step - The step value
     */
    setStep(step: string | undefined): void;
    /**
     * Validate if a step value is valid
     * @param step - The step value to validate
     * @returns True if valid
     */
    isValidStep(step: string | undefined): boolean;
}
/**
 * Mixin that provides number input capabilities to input components
 *
 * @param superClass - The base class to extend
 * @returns Enhanced class with number capabilities
 *
 * @example
 * ```typescript
 * export class MyInput extends NumberMixin(LitElement) {
 *   @query('input') input!: HTMLInputElement;
 *
 *   handleUpClick() {
 *     this.increment();
 *   }
 * }
 * ```
 */
export declare const NumberMixin: <T extends Constructor<LitElement>>(superClass: T) => Constructor<NumberCapable> & T;
export {};
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