LearningSolver: add extract_sa, extract_lhs arguments

miplearn/solvers/learning.py

@@ -101,11 +101,16 @@ class LearningSolver:
         solve_lp: bool = True,
         simulate_perfect: bool = False,
         extractor: Optional[FeaturesExtractor] = None,
+        extract_lhs: bool = True,
+        extract_sa: bool = True,
     ) -> None:
         if solver is None:
             solver = GurobiPyomoSolver()
         if extractor is None:
-            extractor = FeaturesExtractor()
+            extractor = FeaturesExtractor(
+                with_sa=extract_sa,
+                with_lhs=extract_lhs,
+            )
         assert isinstance(solver, InternalSolver)
         self.components: Dict[str, Component] = {}
         self.internal_solver: Optional[InternalSolver] = None