def email(safe:false)
      @email ||= -> {
        domains = if safe
                    ['example.com']
                  else
                    Jia::Utils.load_data('email_domain')
                  end
        account = ::PinYin.of_string(full_name).join('.')
        suffix = rand(999)
        "#{account}#{suffix}@#{domains.sample}"
      }.call
    end
def email(safe:false)
      @email ||= -> {
        domains = if safe
                    ['example.com']
                  else
                    Jia::Utils.load_data('email_domain')
                  end
        account = ::PinYin.of_string(full_name).join('.')
        suffix = rand(999)
        "#{account}#{suffix}@#{domains.sample}"
      }.call
    end
Get email

   Jia::User.new.email # => 'lin.meng123@qq.com'
   Jia::User.new.email(safe: true) # => 'lin.meng123@example.com'