[FNodeHandle](API\Plugins\MetasoundFrontend\FNodeHandle) AddTemplateNode ( const [FNodeRegistryKey](API\Plugins\MetasoundFrontend\FNodeRegistryKey) & InKey, [FMetasoundFrontendNodeInterface](API\Plugins\MetasoundFrontend\FMetasoundFrontendNodeInterface) && InNodeInterface, [FGuid](API\Runtime\Core\Misc\FGuid) InNodeGuid )