| Module | ActionView::Helpers::DebugHelper | 
| In: | lib/action_view/helpers/debug_helper.rb | 
Returns a YAML representation of object wrapped with <pre> and </pre>. If the object cannot be converted to YAML using to_yaml, inspect will be called instead. Useful for inspecting an object at the time of rendering.
  @user = User.new({ :username => 'testing', :password => 'xyz', :age => 42}) %>
  debug(@user)
  # =>
  <pre class='debug_dump'>--- !ruby/object:User
  attributes:
    updated_at:
    username: testing
    age: 42
    password: xyz
    created_at:
  attributes_cache: {}
  new_record: true
  </pre>