Django, extract value from formset

I have overridden save_formset method to extract data from admin page. Here is how my code looks like:

def save_formset(self, request, form, formset, change):
    for f in formset:
        print('Voter address is: ', f['voter_address'])
    super().save_formset(request,form, formset, change)

I get output as:

But I want to extract actual value which is "klncklas," and for second one I would like to know that there is no value present. How I can achieve this?

def save_formset(self, request, form, formset, change):
    # Create instances. Each instance will be a "row" (obj) of the inline model
    instances = formset.save(commit=False)
    # Iterate over the instances (objects of the Inline Model)
    for instance in instances:
        # Get the object's attribute (Model field)
        print(instance.voter_address)
    super().save_formset(request,form, formset, change)