Added the output for 'nested' as an example

nested_mapping.py

@@ -87,3 +87,22 @@ if __name__ == "__main__":
     print("")
     print("Its mapping:")
     pprint(structure)
+    
+    ## Output:
+    ##
+    ##{'2 same dict 1 other': [{'as': <bytes>, 'same': <int>},
+    ##                         {'different': <str>, 'the': <str>}],
+    ## 'play me': <type>,
+    ## 'sequence types': {'lists': [<str>, <datetime>, [<int>]],
+    ##                    'sets': {<int>, <str>, <bool>},
+    ##                    'tuples': (<str>, <datetime>, [<int>])},
+    ## 'some types': {'MaClasse': <MaClasse>,
+    ##                'datetime': <datetime>,
+    ##                'empty-list': <list>,
+    ##                'empty-tuple': <tuple>,
+    ##                'float': <float>,
+    ##                'int': <int>,
+    ##                'list': [<bool>],
+    ##                'set': {<str>},
+    ##                'str': <str>,
+    ##                'tuple': (<str>,)}}