[ML] Add errors.ts

x-pack/plugins/ml/common/types/errors.ts

@@ -0,0 +1,18 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export interface ErrorResponse {
+  body: {
+    statusCode: number;
+    error: string;
+    message: string;
+  };
+  name: string;
+}
+
+export function isErrorResponse(arg: any): arg is ErrorResponse {
+  return arg?.body?.error !== undefined && arg?.body?.message !== undefined;
+}