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