import { UserError } from './error_utils';
import { Result } from './result';
export declare enum AppConfigErrorName {
    APP_CONFIG_IS_NOT_VALID = "appConfigIsNotValid"
}
export interface AppConfigErrorInvalid {
    type: AppConfigErrorName.APP_CONFIG_IS_NOT_VALID;
    file?: string;
    message: string;
}
export type AppConfigErrorInfo = AppConfigErrorInvalid;
export interface AppBundlerConfig {
    /** Resolvable module to run to bundle the block. */
    readonly module?: string;
    /** Options passed to the bundler by the CLI. */
    readonly options?: null;
}
export interface AppConfig {
    readonly version?: '1.0';
    /** Frontend entry file for application. */
    readonly frontendEntry: string;
    /** Swappable bundler extension and options. */
    readonly bundler?: AppBundlerConfig;
}
export declare function validateAppConfig(value: unknown): Result<AppConfig, UserError<AppConfigErrorInfo>>;
export declare function appConfigGetFrontendEntry(appConfig: AppConfig): string;