update template code

mmp/a6/nms.py

@@ -0,0 +1,15 @@
+from typing import List, Sequence, Tuple
+
+from ..a3.annotation import AnnotationRect
+
+
+def non_maximum_suppression(
+    boxes_scores: Sequence[Tuple[AnnotationRect, float]], threshold: float
+) -> List[Tuple[AnnotationRect, float]]:
+    """Exercise 6.1
+    @param boxes_scores: Sequence of tuples of annotations and scores
+    @param threshold: Threshold for NMS
+
+    @return: A list of tuples of the remaining boxes after NMS together with their scores
+    """
+    raise NotImplementedError()