diff --git a/server/entertainment_decider/extras/__init__.py b/server/entertainment_decider/extras/__init__.py
index 9a4637e..31690b2 100644
--- a/server/entertainment_decider/extras/__init__.py
+++ b/server/entertainment_decider/extras/__init__.py
@@ -1,8 +1,10 @@
 from .chain import Chain
 from .strings import remove_common_trails
+from .typing import LazyValue
 
 
 __all__ = [
     "Chain",
+    "LazyValue",
     "remove_common_trails",
 ]
diff --git a/server/entertainment_decider/extras/typing.py b/server/entertainment_decider/extras/typing.py
new file mode 100644
index 0000000..8fe6856
--- /dev/null
+++ b/server/entertainment_decider/extras/typing.py
@@ -0,0 +1,16 @@
+from typing import (
+    Callable,
+    TypeAlias,
+    TypeVar,
+)
+
+
+T = TypeVar("T")
+
+
+LazyValue: TypeAlias = Callable[[], T]
+
+
+__all__ = [
+    "LazyValue",
+]