//TODO 2.1.0.c Now, we are going to set the client in the constructor of the AccountRepository.
 public AccountRepository(IOptions <AccountConfiguration> options) //TODO 2.1.0.c.1 This will take in a version of the Configuration that we set up.
 {
     //TODO 2.1.0.c.3 We then set the dbhandler equal to the configuration file we set up and get the Document Client from the handler.
     dbHandler = options.Value;
     client    = dbHandler.GetDocumentClient();
 }