```ruby
namespace :curriculum do
  desc 'Grab Latest Lesson Content from Github'
  task update_content: :environment do
    Rake::Task['curriculum:content:import'].invoke
    Rake::Task['curriculum:content:verify'].invoke
  end

  namespace :content do
    desc 'Import all lessons content from GitHub'
    task import: :environment do
      Rails.logger.info 'Importing lesson content...'

      Lesson.all.each_with_index do |lesson, i|
        Rails.logger.info "Importing #{i + 1}/#{Lesson.count}: #{lesson.title}"
        lesson.import_content_from_github
      end

      Rails.logger.info 'Lesson content import complete.'
    end

    desc 'Verify that all lessons have content'
    task verify: :environment do
      Rails.logger.info 'Verifying lesson content...'

      Lesson.find_each do |lesson|
        Rails.logger.error("Nil content for #{lesson.title}!") if lesson.content.nil?
        Rails.logger.error("Blank content for #{lesson.title}!") if lesson.content.blank?
      end

      Rails.logger.info 'Lesson content verified.'
    end
  end
end
```

Add Progress Bar to Curriculum Import Task
user
```ruby
namespace :curriculum do
  desc 'Grab Latest Lesson Content from Github'
  task update_content: :environment do
    Rake::Task['curriculum:content:import'].invoke
    Rake::Task['curriculum:content:verify'].invoke
  end

  namespace :content do
    desc 'Import all lessons content from GitHub'
    task import: :environment do
      progressbar = ProgressBar.create total: Lesson.count, format: '%t: |%w%i| Completed: %c %a %e'

      Lesson.all.each do |lesson|
        lesson.import_content_from_github
        progressbar.increment
      end
    end

    desc 'Verify that all lessons have content'
    task verify: :environment do
      Rails.logger.info 'Verifying lesson content...'

      Lesson.find_each do |lesson|
        Rails.logger.error("Nil content for #{lesson.title}!") if lesson.content.nil?
        Rails.logger.error("Blank content for #{lesson.title}!") if lesson.content.blank?
      end

      Rails.logger.info 'Lesson content verified.'
    end
  end
end
```
assistant