diff --git a/src/database/abstraction/persy.rs b/src/database/abstraction/persy.rs
index ba1a1ab..d594811 100644
--- a/src/database/abstraction/persy.rs
+++ b/src/database/abstraction/persy.rs
@@ -396,6 +396,16 @@ impl Tree for PersyTree {
         Ok(())
     }
 
+    #[tracing::instrument(skip(self, iter))]
+    fn insert_batch<'a>(&self, iter: &mut dyn Iterator<Item = (Vec<u8>, Vec<u8>)>) -> Result<()> {
+        //TODO: evaluate if use instead a single big transaction
+        for (key, value) in iter {
+            self.insert(&key, &value)?;
+        }
+
+        Ok(())
+    }
+
     fn remove(&self, key: &[u8]) -> Result<()> {
         self.write_cache
             .write()
@@ -404,7 +414,7 @@ impl Tree for PersyTree {
         Ok(())
     }
 
-    fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + Send + 'a> {
+    fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
         let iter = self.persy.range::<ByteVec, ByteVec, _>(&self.name, ..);
         match iter {
             Ok(iter) => {
@@ -427,7 +437,7 @@ impl Tree for PersyTree {
         &'a self,
         from: &[u8],
         backwards: bool,
-    ) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + Send + 'a> {
+    ) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
         let range = if backwards {
             self.persy
                 .range::<ByteVec, ByteVec, _>(&self.name, ..ByteVec(from.to_owned()))
@@ -471,7 +481,7 @@ impl Tree for PersyTree {
     fn scan_prefix<'a>(
         &'a self,
         prefix: Vec<u8>,
-    ) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + Send + 'a> {
+    ) -> Box<dyn Iterator<Item = (Vec<u8>, Vec<u8>)> + 'a> {
         let range_prefix = ByteVec(prefix.to_owned());
         let range = self
             .persy