import * as postcss from 'postcss';
import { NodeProps } from '../../node';
import type * as sassInternal from '../../sass-internal';
import { AnyExpression, ExpressionProps } from '../index';
import { AnyIfConditionExpression, IfConditionExpression } from './index';
import { IfEntry } from '../if-entry';
/**
 * The set of raws supported by {@link IfConditionSass}.
 *
 * @category Expression
 */
export interface IfConditionSassRaws {
    /** The whitespace after the opening parenthesis. */
    afterOpen?: string;
    /** The whitespace before the closing parenthesis. */
    beforeClose?: string;
}
/**
 * The initializer properties for {@link IfConditionSass} as an explicit object.
 *
 * @category Expression
 */
export interface IfConditionSassObjectProps extends NodeProps {
    raws?: IfConditionSassRaws;
    expression: AnyExpression | ExpressionProps;
}
/**
 * The initializer properties for {@link IfConditionExpression}.
 *
 * @category Expression
 */
export type IfConditionSassProps = IfConditionSassObjectProps | AnyExpression | ExpressionProps;
/**
 * A `sass()` expression in an `if()` condition.
 *
 * @category Expression
 */
export declare class IfConditionSass extends IfConditionExpression {
    readonly sassType: "if-condition-sass";
    raws: IfConditionSassRaws;
    parent: IfEntry | AnyIfConditionExpression | undefined;
    /** The boolean expression. */
    get expression(): AnyExpression;
    set expression(expression: AnyExpression | ExpressionProps);
    private _expression?;
    constructor(defaults: IfConditionSassProps);
    /** @hidden */
    constructor(_: undefined, inner: sassInternal.IfConditionSass);
    clone(overrides?: Partial<IfConditionSassObjectProps>): this;
    toJSON(): object;
    /** @hidden */
    toJSON(_: string, inputs: Map<postcss.Input, number>): object;
    /** @hidden */
    toString(): string;
    /** @hidden */
    get nonStatementChildren(): ReadonlyArray<AnyExpression>;
}