method Node.isNameableimport { Node } from "https://dotland.deno.dev/x/fresh@1.1.1/src/dev/deps.ts"; isNameable<T extends Node>(node: T | undefined): node is NameableNode & NameableNodeExtensionType & TGets if the node is a NameableNode. Gets if the node is a NameableNode. Type ParametersT extends NodeParametersnode: T | undefined Node to check. Returnsnode is NameableNode & NameableNodeExtensionType & T