feat: fix output, STACKITMLO-1718

Author: Syeda Haya Fatima

internal/cmd/modelexperiments/instance/list/list.go

@@ -115,7 +115,7 @@ func outputResult(
 			table.AddRow(
 				instance.Id,
 				instance.Name,
-				instance.Region,
+				*instance.Region,
 				instance.State,
 			)
 		}

internal/cmd/modelexperiments/token/list/list.go

@@ -80,7 +80,11 @@ func outputResult(p *print.Printer, outputFormat string, resp *modelexperiments.
 		table := tables.NewTable()
 		table.SetHeader("ID", "NAME", "DESCRIPTION")
 		for _, token := range resp.Tokens {
-			table.AddRow(token.Id, token.Name, token.Description)
+			description := ""
+			if token.Description != nil {
+				description = *token.Description
+			}
+			table.AddRow(token.Id, token.Name, description)
 		}
 		return table.Display(p)
 	})