import { Codec, Registry } from '@polkadot/types/types';
import { HexString } from '@polkadot/util/types';
export declare class CreateType {
    registry: Registry;
    private metadata;
    constructor(hexRegistry?: HexString);
    private registerDefaultTypes;
    /**
     *
     * @param type `TypeName` to encode or decode payload
     * @param payload `Payload` that have to be encoded or decoded
     * @returns Codec
     * @example
     * ```javascript
     * const createType = new CreateType();
     * const encoded = createType.create('String', 'Hello, World');
     * console.log(encoded.toHex()); // 0x48656c6c6f2c20576f726c6421
     *
     * const decoded = createType.create('String', '0x48656c6c6f2c20576f726c6421');
     * console.log(decoded.toHuman()); // "Hello, World!"
     */
    create<T extends Codec = Codec>(typeOrTypeIndex: string | number, payload: unknown): T;
    /**
     *
     * @param type `TypeName` to encode or decode payload
     * @param payload `Payload` that have to be encoded or decoded
     * @param hexRegistry registry in hex format
     * @param defaultTypes set to true if you want to register default types too
     * @returns Codec
     * @example
     * ```javascript
     * const encoded = CreateType.create('String', 'Hello, World');
     * console.log(encoded.toHex()); // 0x48656c6c6f2c20576f726c6421
     * ```
     */
    static create<T extends Codec = Codec>(type: string, payload: unknown, hexRegistry?: HexString): T;
}