enhance signature of create for conversion from object (#16381)

types/xmlbuilder/index.d.ts

@@ -85,5 +85,5 @@ declare class XMLElementOrXMLNode {
 }
 
 declare namespace xmlbuilder {
-    function create(name: string, xmldec?: Object, doctype?: any, options?: Object): XMLElementOrXMLNode;
+    function create(nameOrObjSpec: string | { [name:string]: Object }, xmldec?: Object, doctype?: any, options?: Object): XMLElementOrXMLNode;
 }

types/xmlbuilder/xmlbuilder-tests.ts

@@ -41,3 +41,10 @@ xml('root')
     .up()
     .ele('atttest', 'text')
     .end();
+
+xml({
+  displayNotification: {
+      level: 'error',
+      message: 'an error occurred'
+  }
+});