method Node.isLiteralTypeNodeimport { Node } from "https://deno.land/x/fresh@1.1.3/src/dev/deps.ts"; isLiteralTypeNode(node: Node | undefined): node is LiteralTypeNodeGets if the node is a LiteralTypeNode. Gets if the node is a LiteralTypeNode. Parametersnode: Node | undefined Node to check. Returnsnode is LiteralTypeNode