Daniele Serafini
--- a/swh/scanner/model.py
+++ b/swh/scanner/model.py
        print(f"{begin}{rel_path}{end}")

+    @property
+    def attributes(self):
+        """
+        Get the attributes of the current node grouped by the relative path.
+
+        Returns:
+            a dictionary containing a path as key and its known/unknown status and the
+            Software Heritage persistent identifier as values.
+
+        """
+        return {str(self.path): {"swhid": self.swhid, "known": self.known,}}
+
+    def toDict(self, dict_nodes={}) -> Dict[str, Dict[str, Dict]]:
+        """
--- a/swh/scanner/model.py
+++ b/swh/scanner/model.py

        print(f"{begin}{rel_path}{end}")

+    @property
+    def attributes(self):
+        """
+        Get the attributes of the current node grouped by the relative path.
+
+        Returns:
+            a dictionary containing a path as key and its known/unknown status and the
+            Software Heritage persistent identifier as values.
+
+        """
--- a/swh/scanner/model.py
+++ b/swh/scanner/model.py
+        Get the attributes of the current node grouped by the relative path.
+
+        Returns:
+            a dictionary containing a path as key and its known/unknown status and the
+            Software Heritage persistent identifier as values.
+
+        """
+        return {str(self.path): {"swhid": self.swhid, "known": self.known,}}
+
+    def toDict(self, dict_nodes={}) -> Dict[str, Dict[str, Dict]]:
+        """
+        Recursively groups the current child nodes inside a dictionary.
+
+        For example, if you have the following structure:
+
+        .. code-block:: none
--- a/swh/scanner/tests/test_model.py
+++ b/swh/scanner/tests/test_model.py
    filesample_path = temp_folder["filesample"]

    for path, pid in temp_folder["paths"].items():
-        if path == filesample_path:
-            example_tree.addNode(path, pid)
-        else:
-            example_tree.addNode(path)
+        example_tree.addNode(path, pid, True if path == filesample_path else False)

-    tree_dict = example_tree.getTree()
+    result = example_tree.toDict()

-    assert len(tree_dict) == 1
-    assert tree_dict["subdir0"]["filesample.txt"]
+    assert len(result) == 6
+