valid_direct_upload_token?

# File activestorage/lib/active_storage/direct_upload_token.rb, line 31
      def valid_direct_upload_token?(token, attachment_name, session) # :doc:
        correct_token = direct_upload_token(session, attachment_name)
        ActiveSupport::SecurityUtils.fixed_length_secure_compare(token, correct_token)
      rescue ArgumentError
        raise ActiveStorage::InvalidDirectUploadTokenError
      end