import { ASTBase, ASTBaseOptions, ASTType } from './base';
export interface ASTUnaryExpressionOptions extends ASTBaseOptions {
    argument: ASTBase;
    operator?: string;
}
export declare class ASTUnaryExpression extends ASTBase {
    argument: ASTBase;
    operator?: string;
    static getUnaryType(operator: string): ASTType.NegationExpression | ASTType.BinaryNegatedExpression | ASTType.UnaryExpression;
    constructor(options: ASTUnaryExpressionOptions);
    toString(): string;
    clone(): ASTUnaryExpression;
}