getOutgoingConnectionsByModule(module) {
		const connections = this._getModuleGraphModule(module).outgoingConnections;
		return connections === undefined
			? undefined
			: connections.getFromUnorderedCache(getConnectionsByModule);
	}
@param {Module} module the module
@returns {readonly Map<Module | undefined, readonly ModuleGraphConnection[]> | undefined} connections to modules, in a map by module