## Model
```ruby
class Account < ApplicationRecord
# 🚅 add concerns above.
# 🚅 add belongs_to associations above.
# 🚅 add has_many associations above.
# 🚅 add oauth providers above.
# 🚅 add has_one associations above.
# 🚅 add scopes above.
# 🚅 add validations above.
# 🚅 add callbacks above.
# 🚅 add delegations above.
# 🚅 add methods above.
end
```