Implement MemorizingLazyConstrComponent

tests/fixtures/gen_tsp.py

@@ -0,0 +1,22 @@
+from os.path import dirname
+
+import numpy as np
+from scipy.stats import uniform, randint
+
+from miplearn.collectors.basic import BasicCollector
+from miplearn.io import write_pkl_gz
+from miplearn.problems.tsp import TravelingSalesmanGenerator, build_tsp_model
+
+np.random.seed(42)
+gen = TravelingSalesmanGenerator(
+    x=uniform(loc=0.0, scale=1000.0),
+    y=uniform(loc=0.0, scale=1000.0),
+    n=randint(low=20, high=21),
+    gamma=uniform(loc=1.0, scale=0.25),
+    fix_cities=True,
+    round=True,
+)
+data = gen.generate(3)
+data_filenames = write_pkl_gz(data, dirname(__file__), prefix="tsp-n20-")
+collector = BasicCollector()
+collector.collect(data_filenames, build_tsp_model)