method Node.isMappedTypeNodeimport { Node } from "https://deno.land/x/fresh@1.2.0/src/dev/deps.ts"; isMappedTypeNode(node: Node | undefined): node is MappedTypeNodeGets if the node is a MappedTypeNode. Gets if the node is a MappedTypeNode. Parametersnode: Node | undefined Node to check. Returnsnode is MappedTypeNode