Merge pull request #57229 from niuzhenguo/cleanup_validargs

Automatic merge from submit-queue (batch tested with PRs 57229, 58907). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Abstract cmd valid args get behind the factory

**What this PR does / why we need it**:
This abstract retrieving the list of handled resources for valid args as a function to follow more conventions.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

pkg/kubectl/cmd/util/printing.go

@@ -223,3 +223,19 @@ func ValidResourceTypeList(f ClientAccessFactory) string {
 	
 	`)
 }
+
+// Retrieve a list of handled resources from printer as valid args
+// TODO: This function implementation should be replaced with a real implementation from the
+//   discovery service.
+func ValidArgList(f ClientAccessFactory) []string {
+	validArgs := []string{}
+	p, err := f.Printer(nil, printers.PrintOptions{
+		ColumnLabels: []string{},
+	})
+	CheckErr(err)
+	if p != nil {
+		validArgs = p.HandledResources()
+	}
+
+	return validArgs
+}