ru.primetalk.synapse.core.ext.SystemBuilderApi
ExtensionId for a system builder. Every extension can be installed only once on the same SystemBuilder. An instance of the extension is created by the extend method.
This method is called once for a system builder. No need to check.
This method is called once for a system builder.
ExtensionId for a system builder. Every extension can be installed only once on the same SystemBuilder. An instance of the extension is created by the extend method.