import * as _Object from './ion/Object';
import * as Expression from './Expression';
import * as Typed from './Typed';
import * as Node from './Node';
import * as Location from './Location';
import * as Null from './ion/Null';
import * as Type from './Type';
import * as String from './ion/String';
import * as Boolean from './ion/Boolean';
export declare class UnaryExpression implements _Object.Object, Expression.Expression, Typed.Typed, Node.Node {
    readonly location: Location.Location | Null.Null;
    readonly type: Type.Type | Null.Null;
    readonly operator: String.String;
    readonly argument: Expression.Expression;
    readonly prefix: Boolean.Boolean;
    static readonly id = "UnaryExpression";
    static readonly implements: Set<string>;
    constructor({ location, type, operator, argument, prefix }: {
        location?: Location.Location | Null.Null;
        type?: Type.Type | Null.Null;
        operator: String.String;
        argument: Expression.Expression;
        prefix?: Boolean.Boolean;
    });
    patch(properties: {
        location?: Location.Location | Null.Null;
        type?: Type.Type | Null.Null;
        operator?: String.String;
        argument?: Expression.Expression;
        prefix?: Boolean.Boolean;
    }): UnaryExpression;
    static is(value: any): value is UnaryExpression;
}
export declare function isUnaryExpression(value: any): value is UnaryExpression;
export default UnaryExpression;
