diff --git a/src/funcchain/syntax/params.py b/src/funcchain/syntax/params.py
new file mode 100644
index 0000000..83eda08
--- /dev/null
+++ b/src/funcchain/syntax/params.py
@@ -0,0 +1,20 @@
+from typing import Any, Optional
+
+from langchain_core.runnables.base import RunnableLike
+
+
+class Depends:
+    def __init__(
+        self,
+        dependency: Optional[RunnableLike[Any, Any]] = None,
+    ):
+        self.dependency = dependency
+
+    def __repr__(self) -> str:
+        return str(self.__class__.__name__) + str(
+            getattr(
+                self.dependency,
+                "__name__",
+                type(self.dependency).__name__,
+            )
+        )