method Node.isLiteralTypeNodeimport { Node } from "https://dotland.deno.dev/x/fresh@1.6.7/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 | undefinedReturnsnode is LiteralTypeNode