diff --git a/src/entry.rs b/src/entry.rs
index 59663fc..982b879 100644
--- a/src/entry.rs
+++ b/src/entry.rs
@@ -67,7 +67,7 @@ impl Entry {
         })
     }
 
-    pub fn from_bytes(consensus_branch_id: u32, buf: &[u8]) -> std::io::Result<Self> {
+    pub fn from_bytes<T: AsRef<[u8]>>(consensus_branch_id: u32, buf: T) -> std::io::Result<Self> {
         let mut cursor = std::io::Cursor::new(buf);
         Self::read(consensus_branch_id, &mut cursor)
     }
diff --git a/src/node_data.rs b/src/node_data.rs
index fd01c3a..dcc8ded 100644
--- a/src/node_data.rs
+++ b/src/node_data.rs
@@ -154,7 +154,7 @@ impl NodeData {
         buf[0..pos].to_vec()
     }
 
-    pub fn from_bytes(consensus_branch_id: u32, buf: &[u8]) -> std::io::Result<Self> {
+    pub fn from_bytes<T: AsRef<[u8]>>(consensus_branch_id: u32, buf: T) -> std::io::Result<Self> {
         let mut cursor = std::io::Cursor::new(buf);
         Self::read(consensus_branch_id, &mut cursor)
     }
diff --git a/src/tree.rs b/src/tree.rs
index 36c3e4e..b816287 100644
--- a/src/tree.rs
+++ b/src/tree.rs
@@ -267,7 +267,7 @@ impl Tree {
     }
 }
 
-
+#[derive(Debug)]
 pub struct IndexedNode<'a> {
     node: &'a Entry,
     link: EntryLink,
@@ -290,6 +290,10 @@ impl<'a> IndexedNode<'a> {
     pub fn data(&self) -> &NodeData {
         &self.node.data
     }
+
+    pub fn link(&self) -> EntryLink {
+        self.link
+    }
 }
 
 fn combine_nodes<'a>(left: IndexedNode<'a>, right: IndexedNode<'a>) -> Entry {