Working in generics now to reduce code.

generics are a little funky still. sigh.

datamodel/low/3.0/example.go

@@ -1,15 +1,29 @@
 package v3
 
 import (
-    "github.com/pb33f/libopenapi/datamodel/low"
-    "gopkg.in/yaml.v3"
+	"github.com/pb33f/libopenapi/datamodel/low"
+	"gopkg.in/yaml.v3"
+)
+
+const (
+	ExamplesLabel = "examples"
+	ExampleLabel  = "example"
 )
 
 type Example struct {
-    Node          *yaml.Node
-    Summary       low.NodeReference[string]
-    Description   low.NodeReference[string]
-    Value         low.ObjectReference
-    ExternalValue low.NodeReference[string]
-    Extensions    map[string]low.ObjectReference
+	Summary       low.NodeReference[string]
+	Description   low.NodeReference[string]
+	Value         low.NodeReference[any]
+	ExternalValue low.NodeReference[string]
+	Extensions    map[low.KeyReference[string]]low.ValueReference[any]
+}
+
+func (ex Example) Build(root *yaml.Node) error {
+	// extract extensions
+	extensionMap, err := ExtractExtensions(root)
+	if err != nil {
+		return err
+	}
+	ex.Extensions = extensionMap
+	return nil
 }