Add initial model interface (#30)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ultralytics/tests/test_model.py

@@ -0,0 +1,13 @@
+from ultralytics.yolo import YOLO
+
+
+def test_model():
+    model = YOLO()
+    model.new("assets/dummy_model.yaml")
+    model.model = "squeezenet1_0"  # temp solution before get_model is implemented
+    # model.load("yolov5n.pt")
+    model.train(data="imagenette160", epochs=1, lr0=0.01)
+
+
+if __name__ == "__main__":
+    test_model()