code: def get_context_data(self, form, *args, **kwargs):
          
          context = super(WizardView, self).get_context_data(*args, **kwargs)
          context.update(self.storage.extra_data)
          context['wizard'] = {
              'form': form,
              'steps': self.steps,
              'management_form': ManagementForm(prefix=self.prefix, initial={
                  'current_step': self.steps.current,
              }),
          }
          return context
docs: Returns the template context for a step. You can overwrite this method
          to add more data for all or some steps. This method returns a
          dictionary containing the rendered form step. Available template
          context variables are:
  
           * all extra data stored in the storage backend
           * `form` - form instance of the current step
           * `wizard` - the wizard instance itself
  
          Example:
  
          .. code-block:: python
  
              class MyWizard(FormWizard):
                  def get_context_data(self, form, **kwargs):
                      context = super(MyWizard, self).get_context_data(form, **kwargs)
                      if self.steps.current == 'my_step_name':
                          context.update({'another_var': True})
                      return context