python, django, modelling with instaloader

Question

the pic:

pic = instaloader.Instaloader(sleep=False, dirname_pattern='media/donor', save_metadata=False, compress_json=False)
pic.download_profile(profile_name=username, profile_pic_only=True)

pic's class ===>>> <class 'instaloader.instaloader.Instaloader'>

And I'm struggling with converting instaloader class into Contributors <<ImageField()>> of django models.

class Contributor(models.Model):
    name = models.CharField(max_length=255, default=' ')
    username = models.CharField(max_length=255, unique=True)
    type = models.ForeignKey(ContributorType, on_delete=models.CASCADE, null=True)
    picture = models.ImageField(upload_to='images/donor', max_length=255)
    cont_village = models.ForeignKey(Village, on_delete=models.CASCADE, null=True)

How can I do this?

I tried with this way:

Contributor.objects.create(
    username=url,
    picture=pic,
)



But recieved: AttributeError
Exception Value:    

'Instaloader' object has no attribute '_committed'