docs: def get_default(self):
          """
          Returns the default value for this field.
  
          The default implementation on models.Field calls force_unicode
          on the default, which means you can't set arbitrary Python
          objects as the default. To fix this, we just return the value
          without calling force_unicode on it. Note that if you set a
          callable as a default, the field will still call it. It will
          *not* try to pickle and encode it.
  
          """
          if self.has_default():
              if callable(self.default):
                  return self.default()
              return self.default
              # If the field doesn't have a default, then we punt to models.Field.
          return super(PickledObjectField, self).get_default()