Feature Request: Annotate via attributes api

[amerov]

Add option for annotation via attributes api for rails >=5

class Movie < ActiveRecord::Base
  #added by the_schemas_is
  attribute :id, :integer 
  attribute :name, :string
  attribute :created_at, :datetime
  attribute :updated_at, :datetime
end

[zverok]

This is an interesting idea, haven't thought about it.
What bothers me, though, is as attribute a generic tool, so our cop can't guess: if some attribute doesn't have a correspondence in the schema.rb, is it discrepancy and should be removed, or it is just unrelated usage of attribute API?

That is a downside I can think of. And another one is: somebody unfamiliar with the_schema_is concept when seeing the_schema_is block will guess where to look to understand it; when seeing the attribute :id (which nobody typically does just to "copy" a column definition to a class), they wouldn't know what to think.

What are the upsides of this idea?