@@ -0,0 +1,416 @@
+%22%22%22%0A Revision ID: 0220_email_brand_type_non_null%0ARevises: 0219_default_email_branding%0ACreate Date: 2018-08-24 13:36:49.346156%0A %22%22%22%0Afrom alembic import op%0A%0Arevision = '0220_email_brand_type_non_null'%0Adown_revision = '0219_default_email_branding'%0A%0A%0Adef upgrade():%0A    op.alter_column('email_branding', 'brand_type', nullable=False)%0A%0A%0Adef downgrade():%0A    op.alter_column('email_branding', 'brand_type', nullable=True)%0A

Make branding type non-nullable