source: pyson/test/MyDeserializer.py

from pyson.Deserializer import Deserializer

'''
Deliberate mismatch between class and package name,
we should be able to handle that.
'''
class ValueDeserializer2(Deserializer):
    '''
    Used in DeserializerTest
    '''
    def __hash__(self):
        return hash(self.geta())
    def deserialize(self, data:object, clas: object)-> object:
        if type(data)!=str:
            raise ValueError("Expected str starting with '$', got  "+str(data))
        # Note we can't create real object here because that would result
        # in circular import. This is why 
        # custom Desearializers are usually defined in same module as the 
        # target object  
        return int(data[1:])