diff --git a/src/iter/ast_node.rs b/src/iter/ast_node.rs
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/src/iter/ast_node.rs
@@ -0,0 +1 @@
+
diff --git a/src/iter/ast_node_iter.rs b/src/iter/ast_node_iter.rs
new file mode 100644
index 00000000..136814a3
--- /dev/null
+++ b/src/iter/ast_node_iter.rs
@@ -0,0 +1,5 @@
+use crate::types::Object;
+
+pub struct BoldIter<'s> {
+    next: std::slice::Iter<'s, Object<'s>>,
+}
diff --git a/src/iter/mod.rs b/src/iter/mod.rs
new file mode 100644
index 00000000..b59a57f7
--- /dev/null
+++ b/src/iter/mod.rs
@@ -0,0 +1,2 @@
+mod ast_node;
+mod ast_node_iter;
diff --git a/src/lib.rs b/src/lib.rs
index bbcaf1f3..c522cf6a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,6 +8,7 @@ pub mod compare;
 
 mod context;
 mod error;
+mod iter;
 pub mod parser;
 pub mod types;