emitLocalEventHandler(eventName, params, opts) {
		if (!this.events[eventName])
			return Promise.reject(
				new MoleculerError(
					`No '${eventName}' registered local event handler`,
					500,
					"NOT_FOUND_EVENT",
					{ eventName }
				)
			);

		return this.events[eventName](params, opts);
	}
Call a local event handler. Useful for unit tests.

@param {String} eventName
@param {any?} params
@param {Object?} opts