import * as postcss from 'postcss';
import { Interpolation, InterpolationProps } from '../interpolation';
import type { AnyNode, NodeProps } from '../node';
import type { AnyStatement } from '../statement';
import * as sassInternal from '../sass-internal';
import { SimpleSelector } from '.';
/**
 * The initializer properties for {@link UniversalSelector}.
 *
 * @category Selector
 */
export interface UniversalSelectorProps extends NodeProps {
    namespace: Interpolation | InterpolationProps | undefined;
    raws?: UniversalSelectorRaws;
}
/**
 * Raws indicating how to precisely serialize an {@UniversalSelector}.
 *
 * @category Selector
 */
export interface UniversalSelectorRaws {
}
/**
 * A type selector.
 *
 * This selects elements of the given type.
 *
 * @category Selector
 */
export declare class UniversalSelector extends SimpleSelector {
    readonly sassType: "universal";
    raws: UniversalSelectorRaws;
    /** The class name that this selects. */
    get namespace(): Interpolation | undefined;
    set namespace(namespace: Interpolation | InterpolationProps | undefined);
    private _namespace;
    constructor(defaults?: UniversalSelectorProps);
    /** @hidden */
    constructor(_: undefined, inner: sassInternal.UniversalSelector);
    clone(overrides?: Partial<UniversalSelectorProps>): this;
    toJSON(): object;
    /** @hidden */
    toJSON(_: string, inputs: Map<postcss.Input, number>): object;
    /** @hidden */
    toString(): string;
    /** @hidden */
    get nonStatementChildren(): ReadonlyArray<Exclude<AnyNode, AnyStatement>>;
}