wrong_tell_dont_ask_example.rb

class User
  def initialize name, user_information={}
    @name = name
    @phone_number = user_information[:phone_number]
  end

  def name
    return @name
  end

  def phone_number
    phone_number.to_s
  end
end

user = User.new 'Brayan'

if user.phone_number.nil?
  puts 'No phone number provided.'
else
  puts user.phone_number
end