title: How to get variable in sorcery.rb at controller
body: <p>I am using the sorcery gem in a Rails 6 application.<br>
  I need to use variable in sorcery.rb at controller, however I do not know how to get the value.</p>
  <pre><code>Rails.application.config.sorcery.submodules = [:user_activation]
  Rails.application.config.sorcery.configure do |config|
    config.user_config do |user|
      user.activation_token_expiration_period = 60 * 60 * 24 * 7 # &lt;= this
    end
  end
  </code></pre>
  <p>How can I get this?</p>