chore: import upstream snapshot with attribution

code/bonus/sckit-model-to-json/attributes.json

@@ -0,0 +1,29 @@
+{
+    "classes_":[
+        0,
+        1,
+        2
+    ],
+    "coef_":[
+        [
+            0.42625236403173844,
+            -8.557501546363858
+        ],
+        [
+            1.5644231337040186,
+            -1.6783659020502222
+        ],
+        [
+            -1.990675497337773,
+            10.235867448186507
+        ]
+    ],
+    "intercept_":[
+        27.533384852155145,
+        4.18509910962595,
+        -31.71848396177913
+    ],
+    "n_iter_":[
+        27
+    ]
+}

code/bonus/sckit-model-to-json/params.json

@@ -0,0 +1 @@
+{"dual": false, "max_iter": 100, "warm_start": false, "verbose": 0, "C": 100.0, "class_weight": null, "random_state": 1, "fit_intercept": true, "multi_class": "multinomial", "intercept_scaling": 1, "penalty": "l2", "solver": "newton-cg", "n_jobs": 1, "tol": 0.0001}