Retrieves a previously registered RPC handler by its tag.
The tag used when the handler was created
The RPC handler associated with the tag (returns RpcGroup.RpcGroup)
Consider using createHandlerRegistry() for better type safety without module augmentation.
const handler = getHandler('flamingo'); // RpcGroup.RpcGroup<any> Copy
const handler = getHandler('flamingo'); // RpcGroup.RpcGroup<any>
Retrieves a previously registered RPC handler by its tag.