import * as E from 'fp-ts/lib/Either';
import { Codec } from './Codec';
/**
 * Codec that removes the _tag property from the top level of the object.
 * We use this to expose RequestFailed on APIs as the _tag property is an implementation detail.
 * Note that _tag in nested objects will not be removed. This is necessary to preserve union types.
 */
export declare class RemoveTopLevelTagCodec implements Codec<unknown> {
    static instance: Codec<unknown>;
    encode(value: unknown): unknown;
    decode(value: unknown): E.Either<Error, unknown>;
    private isObject;
    private removeTopLevelTagIfPresent;
    private removeNullFromObjectIfPresent;
}
//# sourceMappingURL=RemoveTopLevelTagCodec.d.ts.map