STEP #4: Add the Using directive and Constructor to the CodedUITestAmazon.cs file

Open CodedUITestAmazon.cs file - double click in Solution Explorer
Add using directive to enable calls to custom methods and assertions that will be added to the UIMap1.cs file

Scroll to the end of the file to add the Constructor to make a new instance of UIMap1 named UIMap after “private TestContext testContextInstance”