// Copyright 2017-2018 @polkadot/api-provider authors & contributors // This software may be modified and distributed under the terms // of the ISC license. See the LICENSE file for details. import { ProviderInterface$Emitted, ProviderInterface$EmitCb } from '../types'; import { MockState } from './types'; export default function on (self: MockState, type: ProviderInterface$Emitted, sub: ProviderInterface$EmitCb): void { self.emitter.on(type, sub); }