create_superuser(*username_field*, password, **other_fields)
The prototype of create_superuser() should accept the username field, plus all required fields as arguments. For example, if your user model uses email as the username field, and has date_of_birth as a required field, then create_superuser should be defined as:
def create_superuser(self, email, date_of_birth, password):
# create superuser here
...
Unlike create_user(), create_superuser() must require the caller to provide