import type { Writable } from 'svelte/store';
/**
 * Event emitted when the value of a SelectionModel has changed.
 */
export interface SelectionChange<T> {
    /** The current SelectionModel state. */
    selection: Set<T>;
    /** Options that were added to the model. */
    added: T[];
    /** Options that were removed from the model. */
    removed: T[];
}
export interface SelectionModelConfig<T> {
    /** Whether multiple values can be selected. */
    multiple: boolean;
    /** Initially selected values. */
    initiallySelectedValues?: T[];
}
export interface SelectionModelReturn<T> {
    changed: Writable<SelectionChange<T>>;
    /** Selected values. */
    selected: T[];
    /** Toggles a value between selected and deselected. */
    toggle: (value: T) => void;
    /** Selects a value or an array of values. */
    select: (...values: T[]) => void;
    /** Deselects a value or an array of values. */
    deselect: (...values: T[]) => void;
    /** Clears all of the selected values. */
    clear: () => void;
    /** Determines whether the model has a value. */
    hasValue: () => boolean;
    /** Sorts the selected values based on a predicate function. */
    sort: (predicate?: (a: T, b: T) => number) => void;
    /** Determines whether the model does not have a value. */
    isEmpty: () => boolean;
    /** Determines whether a value is selected. */
    isSelected: (value: T) => boolean;
    /** Gets whether multiple values can be selected. */
    isMultipleSelection: () => boolean;
}