method Node.isAwaitableimport { Node } from "https://deno.land/x/fresh@1.1.3/src/dev/deps.ts"; isAwaitable<T extends Node>(node: T | undefined): node is AwaitableNode & AwaitableNodeExtensionType & TGets if the node is an AwaitableNode. Gets if the node is an AwaitableNode. Type ParametersT extends NodeParametersnode: T | undefined Node to check. Returnsnode is AwaitableNode & AwaitableNodeExtensionType & T