Fixes for CI test failures:

  1. linopy/expressions.py:1827 - Added missing from linopy import Model import to the doctest example in QuadraticExpression.to_constraint

Author: FBumann

linopy/expressions.py

@@ -1824,6 +1824,7 @@ def to_constraint(self, sign: SignLike, rhs: ConstantLike) -> QuadraticConstrain
 
         Examples
         --------
+        >>> from linopy import Model
         >>> m = Model()
         >>> x = m.add_variables(name="x")
         >>> y = m.add_variables(name="y")