First version of explain. Creating a new parser was a wrong approach. Need to reimplement

src/sheerkapickle/SheerkaPickler.py

@@ -42,6 +42,9 @@ class SheerkaPickler:
         if utils.is_primitive(obj):
             return obj
 
+        if utils.is_type(obj):
+            return str(obj)
+
         if utils.is_tuple(obj):
             return {tags.TUPLE: [self.flatten(v) for v in obj]}
 

src/sheerkapickle/utils.py

@@ -49,6 +49,10 @@ def is_tuple(obj):
     return type(obj) is tuple
 
 
+def is_class(obj):
+    return type(obj) is type
+
+
 def b64encode(data):
     """
     Encode binary data to ascii text in base64. Data must be bytes.