import type { GetItemKeys } from '../types/utils';
import type { IconComponent } from '../types/icons';
export declare function pick<Data extends object, Keys extends keyof Data>(data: Data, keys: Keys[]): Pick<Data, Keys>;
export declare function omit<Data extends object, Keys extends keyof Data>(data: Data, keys: Keys[]): Omit<Data, Keys>;
export declare function get(object: Record<string, any> | undefined, path: (string | number)[] | string, defaultValue?: any): any;
/**
 * Assigns `value` at a dotted `path`, creating intermediate objects as it goes.
 *
 * Neither this nor `get()` is reachable from inside b24ui — nothing in `src/`
 * calls `set()`, and every `get()` path the components pass is an
 * author-written `labelKey` / `valueKey`. Both are on the public `./utils`
 * entry though, so the guard is for the consumer who forwards a path that came
 * from somewhere less trustworthy. See `utils/prototype-guard.ts` for what is
 * being defended against.
 *
 * @throws {TypeError} if any path segment names `__proto__`, `constructor` or
 * `prototype`. Such a path writes through to a shared prototype rather than to
 * `object`, and unlike a read there is no sensible value to return instead: the
 * caller's data model ends up in a state they do not believe it is in either
 * way, and an exception is the outcome they can catch.
 */
export declare function set(object: Record<string, any>, path: (string | number)[] | string, value: any): void;
/**
 * Index of the first item whose `valueKey` field strictly equals `value`.
 * Timeline and Stepper resolve their active item through this.
 */
export declare function itemValueIndex<T>(items: T[], value: unknown, valueKey: string): number;
export declare function looseToNumber(val: any): any;
export declare function compare<T>(value?: T, currentValue?: T, comparator?: string | ((a: T, b: T) => boolean)): boolean;
export declare function isEmpty(value: unknown): boolean;
export declare function getDisplayValue<T extends Array<any>, V>(items: T, value: V | undefined | null, options?: {
    valueKey?: GetItemKeys<T>;
    labelKey?: GetItemKeys<T>;
    by?: string | ((a: any, b: any) => boolean);
}): string | undefined;
export declare function isArrayOfArray<A extends any[] | any[][]>(item: A): item is A extends Array<infer T> ? T extends any[] ? T[] : never : never;
export declare function mergeClasses(appConfigClass?: string | string[], propClass?: string): "" | (string | undefined)[];
export declare function getSlotChildrenText(children: any): any;
export declare function extractPromptText(el: Element | null | undefined): string;
/**
 * Resolve an icon component by name from `dictionary/icons.ts`.
 *
 * Accepts both short camelCase aliases used internally (`"tip"`, `"warning"`,
 * `"info"`) and PascalCase named icons exposed to markdown authors via
 * `iconName` (`"InfoCircleIcon"`, `"GitHubIcon"`, ...). Returns `undefined`
 * when the name is not in the dictionary.
 */
export declare function resolveIcon(name?: string | null): IconComponent | undefined;
export declare function transformUI(ui: any, uiProp?: any): any;
export declare function resolveBaseURL(path?: string, baseURL?: string): string | undefined;
export * from './content';