There's more than one way to write the corresponding Ruby snippet. If I had been writing it, I might have translated it something like this:

    class BlogPost
      class << self
        attr_accessor :count
      end
      self.count = 0

      attr_accessor :title, :body

      def initialize(title, body)
        @title = title
        @body = body
        @published = false
        BlogPost.count += 1
      end

      def publish!
        @published = true
      end

      def to_s = @title
      def count = self.class.count
    end

This avoids needing to understand what `@@count` means, and lets you use the same syntax as in python: `BlogPost.count += 1`.

Or, if I were in a codebase using static type annotations with Sorbet, I'd do something like this[0]. To each their own, write code in the language and style that makes the most sense to you.

[0] https://sorbet.run/#%23%20typed%3A%20true%0Aclass%20Module%3...