import Validation from '../Validation';
import { IdentifierPath } from '../Validation';
import RuntimeTypeErrorItem from '../errorReporting/RuntimeTypeErrorItem';
export declare function assertIsType(x: unknown, name: string): void;
/**
 * # Type
 *
 * This is the base class for all types.
 */
export default abstract class Type<T> {
    readonly __type: T;
    typeName: string;
    resolveType(): Type<T>;
    abstract errors(validation: Validation, path: IdentifierPath, input: any): Iterable<RuntimeTypeErrorItem>;
    abstract accepts(input: any): input is T;
    get acceptsSomeCompositeTypes(): boolean;
    assert(input: any, prefix?: string, path?: IdentifierPath): T;
    validate(input: any, prefix?: string, path?: IdentifierPath): Validation;
    abstract toString(options?: {
        formatForMustBe?: boolean;
    }): string;
}