diff --git a/pint/__init__.py b/pint/__init__.py
index ee80048e1..b8b5b43a1 100644
--- a/pint/__init__.py
+++ b/pint/__init__.py
@@ -29,6 +29,7 @@
 from .registry import ApplicationRegistry, LazyRegistry, UnitRegistry
 from .util import logger, pi_theorem  # noqa: F401
 
+
 # Default Quantity, Unit and Measurement are the ones
 # build in the default registry.
 Quantity = UnitRegistry.Quantity
diff --git a/pint/facets/plain/quantity.py b/pint/facets/plain/quantity.py
index 2f3de43b9..896dcfbf9 100644
--- a/pint/facets/plain/quantity.py
+++ b/pint/facets/plain/quantity.py
@@ -152,11 +152,11 @@ def __reduce__(self) -> tuple[type, Magnitude, UnitsContainer]:
         # TODO: Check if this is still the case.
         return _unpickle_quantity, (PlainQuantity, self.magnitude, self._units)
 
-    # @overload
-    # def __new__(
-    #     cls, value: T, units: UnitLike | None = None
-    # ) -> PlainQuantity[T]:
-    #     ...
+    @overload
+    def __new__(
+        cls, value: MagnitudeT, units: UnitLike | None = None
+    ) -> PlainQuantity[MagnitudeT]:
+        ...
 
     @overload
     def __new__(cls, value: str, units: UnitLike | None = None) -> PlainQuantity[int]:
diff --git a/pint/registry.py b/pint/registry.py
index 964d8a5e8..5415ed2b3 100644
--- a/pint/registry.py
+++ b/pint/registry.py
@@ -14,7 +14,7 @@
 
 from __future__ import annotations
 
-from typing import Generic
+from typing import Generic, TypeAlias
 
 from . import registry_helpers
 from . import facets
@@ -98,8 +98,8 @@ class UnitRegistry(
         If None, the cache is disabled. (default)
     """
 
-    Quantity = Quantity
-    Unit = Unit
+    Quantity: TypeAlias = Quantity
+    Unit: TypeAlias = Unit
 
     def __init__(
         self,