method EventEmitter.prototype.addListenerimport { EventEmitter } from "https://deno.land/x/aleph@v0.3.0-beta.12/framework/core/events.ts"; addListener(eventName: string | symbol, listener: GenericFunction | WrappedFunction): thisAlias for emitter.on(eventName, listener). ParameterseventName: string | symbollistener: GenericFunction | WrappedFunctionReturnsthis