import type { IconCustomizations } from '@iconify/utils/lib/loader/types';
export type Awaitable<T> = T | Promise<T>;
export interface IconsOptions {
    /**
     * Scale related to the current font size (1em).
     *
     * @default 1.2
     */
    scale?: number;
    /**
     * Mode of generated CSS icons.
     *
     * - `mask` - use background color and the `mask` property for monochrome icons
     * - `bg` - use background image for the icons, colors are static
     * - `auto` - smartly decide mode between `mask` and `background-img` per icon based on its style
     *
     * @default 'auto'
     * @see https://antfu.me/posts/icons-in-pure-css
     */
    mode?: 'mask' | 'bg' | 'auto';
    /**
     * Class prefix for matching icon rules.
     *
     * @default `i-`
     */
    prefix?: string;
    /**
     * Extra CSS properties applied to the generated CSS
     *
     * @default "{display: inline-block, 'vertical-align': 'middle'}"
     *
     */
    extraCssProperties?: Record<string, string>;
    /**
     * Emit warning when missing icons are matched
     *
     * @default false
     */
    warn?: boolean;
    /**
     * JSON icon files to be loaded, allows use of Font Awesome Pro (eg fa-pro-duotone)
     *
     * @default {}
     */
    jsonCollections?: Record<string, string>;
    /**
     * In Node.js environment, the preset will search for the installed iconify dataset automatically.
     * When using in the browser, this options is provided to provide dataset with custom loading mechanism.
     */
    /**
     * Custom icon customizations.
     */
    customizations?: Omit<IconCustomizations, 'additionalProps' | 'trimCustomSvg'>;
    /**
     * Auto install icon sources package when the usages is detected
     *
     * **WARNING**: only on `node` environment, on `browser` this option will be ignored.
     *
     * @default false
     */
    autoInstall?: boolean;
    /**
     * Custom icon unit.
     *
     * @default `em`
     */
    unit?: string;
}