import type { IconPaths } from "../iconTypes";
import { type IconNextName } from "./iconNextNames";
import { type NextIconPathsLoader } from "./pathsLoader";
export type NextIconVariant = "outlined" | "filled";
export interface NextIconLoaderOptions {
    /**
     * Custom loader function, or use the default dynamic import loader.
     *
     * @default defaultNextIconPathsLoader
     */
    loader?: NextIconPathsLoader;
}
/**
 * Next-generation icon loader. Simplified from `Icons` — no size branching, single cache,
 * with outlined/filled variant support.
 */
export declare class IconsNext {
    /** Set of icon names that have filled variants. */
    private static filledSet;
    /** Cache keyed by "iconName:variant". */
    private static cache;
    /** Icons for which the missing-filled-variant warning has already been emitted. */
    private static warnedAboutMissingFilledVariant;
    /** Configurable loader function. */
    private static loader;
    /**
     * Set global loader options for all subsequent `IconsNext.load()` calls.
     */
    static setLoaderOptions(options: NextIconLoaderOptions): void;
    /**
     * Load one or more next icons for use in Blueprint components.
     */
    static load(icons: IconNextName | IconNextName[], variant?: NextIconVariant): Promise<void>;
    /**
     * Load all next icons (outlined variant). Optionally also load filled variants.
     */
    static loadAll(options?: {
        includeFilled?: boolean;
    }): Promise<void>;
    /**
     * Get the icon SVG paths. Returns `undefined` if the icon has not been loaded yet.
     * If `variant="filled"` is requested but unavailable, falls back to outlined.
     */
    static getPaths(icon: IconNextName, variant?: NextIconVariant): IconPaths | undefined;
    /**
     * Returns `true` if the given icon has a filled variant available.
     */
    static hasFilled(icon: IconNextName): boolean;
    /**
     * Returns `true` if the given string is a valid next icon name.
     */
    static isValidIconName(name: string): name is IconNextName;
    private static loadImpl;
    private static resolveVariant;
    private static cacheKey;
}