[V] $lib

const $lib: TypeSpecLibrary<{
  "invalid-ns-declaration-member": {
     default: CallableMessage<["name"]>;
  };
  "ns-enum-not-declaration": {
     default: "Enum member used as namespace must be part of an enum marked with @nsDeclaration.";
  };
  "ns-missing-prefix": {
     default: "When using a string namespace you must provide a prefix as the 2nd argument.";
  };
  "ns-not-uri": {
     default: "Namespace namespace is not a valid URI.";
  };
  "prefix-not-allowed": {
     default: "@ns decorator cannot have the prefix parameter set when using an enum member.";
  };
}, Record<string, any>, "attribute" | "unwrapped" | "ns" | "nsDeclaration">;

TypeSpec Xml Library Definition