import { KeywordTypeNode, NullLiteral } from 'typescript';
import { AstNode } from './ast-node';
export declare class AstKeywordType implements AstNode {
    node: KeywordTypeNode | NullLiteral;
    constructor(node: KeywordTypeNode | NullLiteral);
    equals(type: AstKeywordType): boolean;
    get isString(): boolean;
    get isBoolean(): boolean;
    get isNumber(): boolean;
    get isUndefined(): boolean;
    get isNull(): boolean;
}