Understanding Y.App Transitions

app.coffee

  MyApp = Y.Base.create 'myApp', Y.App, [],

    views:
      signIn:
        type: SignInView
      requestPasswordReset:
        type: RequestPasswordResetView
        parent: 'signIn'
      checkEmail:
        type: CheckEmailView
        parent: 'signIn'
      resetPassword:
        type: ResetPasswordView
        parent: 'signIn'
    
    # ...
  ,
    ATTRS:
      transitions:
        value: true