import Primitive from './primitive';
import Nillable from './nillable';
import Nullable from './nullable';
import Optional from './optional';
import type { SymbolState } from '../types';
declare class Symbol extends Primitive<symbol, symbol, SymbolState<symbol, symbol>> {
    filter(value: unknown, defaultable: false, quiet: true): boolean;
    filter(value: unknown, defaultable?: boolean, quiet?: false): symbol;
    filter(value: unknown, defaultable?: boolean, quiet?: boolean): symbol | boolean;
    test(value: unknown): value is symbol;
    anyOf(values: symbol[]): Symbol;
    noneOf(values: symbol[]): Symbol;
    nillable(): Nillable<symbol>;
    nullable(): Nullable<symbol>;
    optional(): Optional<symbol>;
}
export default Symbol;