type Constructor<T = object> = new (...args: any[]) => T;
interface AffixMixinBase {
    ariaDescribedby: string | null;
    id: string;
}
/**
 * Mixin that adds prefix/suffix affix support with screen-reader handling to an input field component.
 * Shared between TextField and NumberField to keep the behaviour consistent and avoid duplication.
 */
export declare function AffixMixin<TBase extends Constructor<AffixMixinBase>>(Base: TBase): {
    new (...args: any[]): {
        /**
         * Optional non-editable label shown on the left inside the field, before the input.
         */
        prefix: string;
        /**
         * Optional non-editable suffix (e.g. unit label) shown on the right inside the field.
         */
        suffix: string;
        /**
         * When true, prefix/suffix are not exposed to assistive technology (`aria-hidden` on affixes,
         * and their ids are omitted from the control's `aria-describedby`).
         * Use only when the unit or symbol is redundant with the visible label or other text.
         * @remarks
         * By default, affix text is **included** for screen readers: stable ids are assigned to the
         * affix nodes and referenced from the input's `aria-describedby` (merged with any author
         * `aria-describedby`), which announces them as supplementary description after the field name
         * from the label.
         * For cases where the affix should be part of the accessible **name** instead (e.g. currency
         * code read as part of the label), set `hide-affix-from-screen-reader` and wire
         * `aria-labelledby` on the host to reference the label slot and your own elements, or provide
         * a single `aria-label` that includes the full name.
         */
        hideAffixFromScreenReader: boolean;
        /**
         * Merges the host `aria-describedby` with ids of the prefix/suffix nodes when those affixes
         * are exposed to screen readers.
         * @internal
         */
        get controlAriaDescribedby(): string | undefined;
        ariaDescribedby: string | null;
        id: string;
    };
} & TBase;
export {};
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