import { NgClass } from '@angular/common';
import * as i0 from "@angular/core";
export declare class DokuFieldPrefix {
    /**
     * The appearance of the prefix content.
     * - `inline`, use field padding - ideal for icon.
     * - `border-block`, has own padding and border as a separator - ideal for text like "IDR".
     * - `block`, the looks will be based on the provided content - ideal for component like Button.
     * - `border-block-inside`, looks like border block but no padding
     * and inside the wrapper border - ideal for select component.
     */
    appearance: 'inline' | 'border-block' | 'block' | 'border-block-inside';
    /**
     * Whether to use background color. Support is limited by appearance.
     *
     * Supported appearances:
     * - `border-block`
     * - `border-block-inside`
     */
    useBackgroundColor: boolean;
    protected readonly classPrefix = true;
    protected get classAppearance(): NgClass['ngClass'];
    private getBackgroundClass;
    static ɵfac: i0.ɵɵFactoryDeclaration<DokuFieldPrefix, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DokuFieldPrefix, "[doku-field-prefix]", ["dokuFieldPrefix"], { "appearance": "appearance"; "useBackgroundColor": "useBackgroundColor"; }, {}, never, never, true>;
}