import { ApiPromise } from '@polkadot/api';
import Keyring from '@polkadot/keyring';
import { KeyringOptions } from '@polkadot/keyring/types';
import { RegistryTypes } from '@polkadot/types/types';
export declare const registryTypes: RegistryTypes;
export declare const createKeyring: (options?: KeyringOptions) => Promise<Keyring>;
/**
 * Creates an API primitive that holds the connection, transaction and querying of substrate node.
 * @param endpoint URI of the substrate node.
 */
export declare const createApiPromise: (endpoint: string) => Promise<ApiPromise>;
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