raise_conflict_error

# File activerecord/lib/active_record/enum.rb, line 224
      def raise_conflict_error(enum_name, method_name, type: 'instance', source: 'Active Record')
        raise ArgumentError, ENUM_CONFLICT_MESSAGE % {
          enum: enum_name,
          klass: self.name,
          type: type,
          method: method_name,
          source: source
        }
      end