import { SafePlugin } from '@atlaskit/editor-common/safe-plugin';
import type { ExtractInjectionAPI } from '@atlaskit/editor-common/types';
import type { ResolvedUserPreferences } from '@atlaskit/editor-common/user-preferences';
import { PluginKey } from '@atlaskit/editor-prosemirror/state';
import type { UserPreferencesPluginOptions, UserPreferencesPlugin } from '../userPreferencesPluginType';
/**
 * Given the current overrides and an override action `{ key, value }`, returns
 * the new overrides object:
 * - If `value` is `null` or `undefined`, the key is removed from overrides.
 * - Otherwise, the key is set to `value` in overrides.
 */
export declare const applyOverride: (currentOverrides: Partial<ResolvedUserPreferences>, override: {
    key: keyof ResolvedUserPreferences;
    value: ResolvedUserPreferences[keyof ResolvedUserPreferences] | null | undefined;
}) => Partial<ResolvedUserPreferences>;
export declare const userPreferencesPluginKey: PluginKey;
type UserPreferencesPluginState = {
    overrides: Partial<ResolvedUserPreferences>;
    preferences: ResolvedUserPreferences;
};
export declare const createPlugin: (pluginOptions: UserPreferencesPluginOptions, _api: ExtractInjectionAPI<UserPreferencesPlugin> | undefined) => SafePlugin<UserPreferencesPluginState>;
export {};