diff --git a/src/saleyo/__init__.py b/src/saleyo/__init__.py
index e787c25..8b27a25 100644
--- a/src/saleyo/__init__.py
+++ b/src/saleyo/__init__.py
@@ -28,6 +28,7 @@
 from .operation import ReName as ReName
 from .operation import Alias as Alias
 from .operation import Ancestor as Ancestor
+from .operation import Insert as Insert
 from .base.toolchain import ToolChain as ToolChain
 from .base.toolchain import Arguments as Arguments
 from .base.toolchain import InvokeEvent as InvokeEvent
diff --git a/src/saleyo/base/toolchain.py b/src/saleyo/base/toolchain.py
index 0e1fe0d..d3ca374 100644
--- a/src/saleyo/base/toolchain.py
+++ b/src/saleyo/base/toolchain.py
@@ -71,7 +71,7 @@ def __init__(self, *namespace: Optional[NameSpace]) -> None:
             k: v for _ in namespace if _ is not None for k, v in _.items()
         }
 
-    def exec(self, source: str) -> Dict[str, Any]:
+    def exec(self, source: str) -> NameSpace:
         exec(source, self.environment)
         return self.environment
 
diff --git a/src/saleyo/operation/__init__.py b/src/saleyo/operation/__init__.py
index d4544c0..6b63b37 100644
--- a/src/saleyo/operation/__init__.py
+++ b/src/saleyo/operation/__init__.py
@@ -6,5 +6,6 @@
 from .modify import ReName as ReName
 from .modify import Del as Del
 from .modify import Alias as Alias
+from .modify import Insert as Insert
 from .hook import Pre as Pre
 from .hook import Post as Post