[RFC] Adding a "fluent" interface (a.k.a method chain)

[okuramasafumi]

Say we have a resource class:

class UserResource
  include Alba::Resource

  attributes :id, :name
end

If we want to have a new resource class that's similar to UserResource, one way is to inherit it.

class AnotherUserResource < UserResource
  attributes :email

  many :posts
end

AnotherUserResource.new(user).serialize

But what if we can do something like this?

UserResource.attributes(:email).many(:posts).new(user).serialize

This way, we can create ad-hoc class without adding files. It's useful when we must define many resources but they're almost the same.

What do you think?