@gear-js/api/lib/types/interfaces/callbacks.d.ts

A JavaScript library that provides functionality to connect GEAR Component APIs.

import type { Balance, Header } from '@polkadot/types/interfaces';
import type { ISubmittableResult } from '@polkadot/types/types';
export type IBlocksCallback = (event: Header) => void | Promise<void>;
export type IBalanceCallback = (event: Balance) => void | Promise<void>;
export type TransactionStatusCb = (result: ISubmittableResult, extra: undefined) => void | Promise<void>;