required(:max_number_of_relation_members).filled(:int?)
required(:max_issues_count).filled(:int?)
required(:api_timeout).filled(:int?)
+ required(:user_account_deletion_delay).maybe(:number?)
required(:imagery_blacklist).maybe(:array?)
required(:status).filled(:str?, :included_in? => ALLOWED_STATUS)
required(:avatar_storage).filled(:str?)