field=models.CharField(help_text=b'Which python-social-auth OAuth2 provider backend to use. The list of backend choices is determined by the THIRD_PARTY_AUTH_BACKENDS setting.',max_length=50,db_index=True,choices=[(b'google-oauth2',b'google-oauth2'),(b'linkedin-oauth2',b'linkedin-oauth2'),(b'facebook',b'facebook'),(b'twitter',b'twitter'),(b'dummy',b'dummy')]),
),
migrations.AlterField(
model_name='samlproviderconfig',
name='backend_name',
field=models.CharField(default=b'tpa-saml',help_text=b"Which python-social-auth provider backend to use. 'tpa-saml' is the standard edX SAML backend.",max_length=50,choices=[(b'tpa-saml',b'tpa-saml')]),
field=models.CharField(help_text='The platform key associates CourseTalk widgets with your platform. Generally, it is the domain name for your platform. For example, if your platform is http://edx.org, the platform key is "edx".',max_length=50),