import { Parser, ParserContext } from '../';
import { IMessage } from '../interface';
export type VarType = 'add' | 'incr' | '++' | 'rem' | 'remove' | 'decr' | '--' | 'set';
export declare function variable(this: Parser, message: IMessage, _settings: never, _context: ParserContext, varName: string, type: VarType, val?: string): Promise<number | "[Error: Variables Not Supported]">;