method Node.isDecoratableimport { Node } from "https://deno.land/x/fresh@1.1.5/src/dev/deps.ts"; isDecoratable<T extends Node>(node: T | undefined): node is DecoratableNode & DecoratableNodeExtensionType & TGets if the node is a DecoratableNode. Gets if the node is a DecoratableNode. Type ParametersT extends NodeParametersnode: T | undefined Node to check. Returnsnode is DecoratableNode & DecoratableNodeExtensionType & T