import { TemplateRef } from '@angular/core';
export interface SelectOption {
    label: TemplateRef<unknown> | string;
    labelContext?: unknown;
}
export interface SelectFilterOption<T> extends SelectOption {
    disabled?: boolean;
    value: T;
}
export type OptionFilterFn<T> = (filter: string, option: SelectFilterOption<T>) => boolean;
export type TrackFn<T, R = unknown> = (value: T) => R;
export type TagClassFn<V, T extends TemplateRef<unknown> | string = TemplateRef<unknown> | string> = (label: T, value: V) => Set<string> | string[] | string | {
    [className: string]: unknown;
};
export declare enum SelectAllStatus {
    Empty = "",
    Checked = "checked",
    Indeterminate = "indeterminate"
}