import { AliasPiece } from '@sapphire/pieces';
import type { Awaitable } from '@sapphire/utilities';
import type { Message } from 'fuwa';
import { Restrict } from '../types/Enums';
import { UserError } from './UserError';
export interface CommandOptions extends AliasPiece.Options {
    description: string | null;
    nsfw?: boolean;
    restrictTo?: Restrict;
}
export interface CommandToJSON extends AliasPiece.JSON {
    description: string | null;
    restrictTo: Restrict | null;
}
export declare namespace Command {
    type Options = CommandOptions;
    type Context = AliasPiece.Context;
    type ToJSON = CommandToJSON;
}
export declare abstract class Command extends AliasPiece<CommandOptions> {
    /**
     * Command description
     *
     * @since 1.0.0
     */
    readonly description: string | null;
    /**
     * Whether this command should be only ran in NSFW channels
     *
     * @since 1.0.0
     * @default false
     */
    readonly nsfw: boolean;
    /**
     * Restricts this command to DMs or Guild Text Channels
     *
     * @since 1.0.0
     * @default null
     */
    readonly restrictTo: Restrict | null;
    constructor(context: AliasPiece.Context, options: CommandOptions);
    abstract run(message: Message, args: Array<string>): Awaitable<unknown>;
    runPreconditions(message: Message): UserError | true;
    toJSON(): CommandToJSON;
}