Change definition of QuantityT

Signed-off-by: Elzbieta Kotulska <[email protected]>

Author: ela-kotulska-frequenz

src/frequenz/sdk/timeseries/_quantities.py

@@ -11,19 +11,6 @@
 from datetime import timedelta
 from typing import Any, NoReturn, Self, TypeVar, overload
 
-QuantityT = TypeVar(
-    "QuantityT",
-    "Quantity",
-    "Power",
-    "Current",
-    "Voltage",
-    "Energy",
-    "Frequency",
-    "Percentage",
-    "Temperature",
-)
-"""Type variable for representing various quantity types."""
-
 
 class Quantity:
     """A quantity with a unit.
@@ -1339,3 +1326,7 @@ def as_fraction(self) -> float:
             This quantity as a fraction.
         """
         return self._base_value / 100
+
+
+QuantityT = TypeVar("QuantityT", bound=Quantity)
+"""Type variable for representing various quantity types."""

src/frequenz/sdk/timeseries/formula_engine/_formula_engine.py

@@ -858,7 +858,7 @@ def __init__(
                 TokenType,
                 FormulaEngine[QuantityT]
                 | FormulaEngine3Phase[QuantityT]
-                | QuantityT
+                | Quantity
                 | float
                 | str,
             ]

src/frequenz/sdk/timeseries/formula_engine/_resampled_formula_builder.py

@@ -53,7 +53,7 @@ def __init__(  # pylint: disable=too-many-arguments
         self._namespace: str = namespace
         self._metric_id: ComponentMetricId = metric_id
         self._resampler_requests: list[ComponentMetricRequest] = []
-        super().__init__(formula_name, create_method)  # type: ignore[arg-type]
+        super().__init__(formula_name, create_method)
 
     def _get_resampled_receiver(
         self, component_id: int, metric_id: ComponentMetricId