})
		}
		return fieldpath.PathElement{
			Key: &fields,
		}, nil
	default:
		// Ignore unknown key types
		return fieldpath.PathElement{}, nil
	}
}

// PathElementString serializes a path element
func PathElementString(pe fieldpath.PathElement) (string, error) {
	switch {
	case pe.FieldName != nil:
		return Field + Separator + *pe.FieldName, nil
	case pe.Key != nil:
		kv := map[string]json.RawMessage{}

	}

	for _, test := range tests {
		t.Run(test, func(t *testing.T) {
			pe, err := NewPathElement(test)
			if err != nil {
				t.Fatalf("Failed to create path element: %v", err)
			}
			output, err := PathElementString(pe)
			if err != nil {
				t.Fatalf("Failed to create string from path element: %v", err)
			}
			if test != output {
				t.Fatalf("Expected round-trip:\ninput: %v\noutput: %v", test, output)
			}
		})
	}