meta,args: add missing Include, add iterator to use normal or Readonly the same way

pkg/meta/readonly.go

@@ -1,50 +1,60 @@
 package meta
 
 import (
+	"iter"
+
 	"github.com/ipld/go-ipld-prime"
 )
 
 // ReadOnly wraps a Meta into a read-only facade.
 type ReadOnly struct {
-	m *Meta
+	meta *Meta
 }
 
 func (r ReadOnly) GetBool(key string) (bool, error) {
-	return r.m.GetBool(key)
+	return r.meta.GetBool(key)
 }
 
 func (r ReadOnly) GetString(key string) (string, error) {
-	return r.m.GetString(key)
+	return r.meta.GetString(key)
 }
 
 func (r ReadOnly) GetEncryptedString(key string, encryptionKey []byte) (string, error) {
-	return r.m.GetEncryptedString(key, encryptionKey)
+	return r.meta.GetEncryptedString(key, encryptionKey)
 }
 
 func (r ReadOnly) GetInt64(key string) (int64, error) {
-	return r.m.GetInt64(key)
+	return r.meta.GetInt64(key)
 }
 
 func (r ReadOnly) GetFloat64(key string) (float64, error) {
-	return r.m.GetFloat64(key)
+	return r.meta.GetFloat64(key)
 }
 
 func (r ReadOnly) GetBytes(key string) ([]byte, error) {
-	return r.m.GetBytes(key)
+	return r.meta.GetBytes(key)
 }
 
 func (r ReadOnly) GetEncryptedBytes(key string, encryptionKey []byte) ([]byte, error) {
-	return r.m.GetEncryptedBytes(key, encryptionKey)
+	return r.meta.GetEncryptedBytes(key, encryptionKey)
 }
 
 func (r ReadOnly) GetNode(key string) (ipld.Node, error) {
-	return r.m.GetNode(key)
+	return r.meta.GetNode(key)
+}
+
+func (r ReadOnly) Iter() iter.Seq2[string, ipld.Node] {
+	return r.meta.Iter()
 }
 
 func (r ReadOnly) Equals(other ReadOnly) bool {
-	return r.m.Equals(other.m)
+	return r.meta.Equals(other.meta)
 }
 
 func (r ReadOnly) String() string {
-	return r.m.String()
+	return r.meta.String()
+}
+
+func (r ReadOnly) WriteableClone() *Meta {
+	return r.meta.Clone()
 }