def __init__(self, *args, **kwargs):
        """
        Assign default args to this field.

        As per: https://stripe.com/docs/upgrades
        You can safely assume object IDs we generate will never exceed 255
        characters, but you should be able to handle IDs of up to that
        length.
        """
        defaults = {"max_length": 255, "blank": False, "null": False}
        defaults.update(kwargs)
        super().__init__(*args, **defaults)

        Assign default args to this field.

        As per: https://stripe.com/docs/upgrades
        You can safely assume object IDs we generate will never exceed 255
        characters, but you should be able to handle IDs of up to that
        length.
        
djstripe/fields.py