t.Run(tt.desc, func(t *testing.T) {
			if got := IsKVPathElement(tt.in); got != tt.expect {
				t.Errorf("%s: expect %v got %v", tt.desc, tt.expect, got)
			}
		})
	}
}

func TestIsVPathElement(t *testing.T) {
	tests := []struct {
		desc   string
		in     string
		expect bool
	}{
		{
			desc:   "valid",
			in:     "[:1]",
			expect: true,
		},
		{