import { InjectionToken, Provider } from '@angular/core';
import { ConfigOption } from './models';
import { FormlyConfig } from './services/formly.config';
/**
 * An InjectionToken for registering additional formly config options (types, wrappers ...).
 */
export declare const FORMLY_CONFIG: InjectionToken<ConfigOption[]>;
export declare function withDefaultConfig(config: FormlyConfig): ConfigOption;
export declare function withFormlyFieldExpression(): ConfigOption;
export declare const provideFormlyCore: (configs?: ConfigOption | ConfigOption[]) => Provider;
export declare const provideFormlyConfig: (configs?: ConfigOption | ConfigOption[]) => Provider;