hookDisplaydisplayProductButtons is ot working

[usasat]

I have the code on my module instillation:

 

    public function install()
    {
          if (Shop::isFeatureActive())
                Shop::setContext(Shop::CONTEXT_ALL);
 
          return parent::install() &&
                $this->registerHook('displayProductButtons') &&
                $this->registerHook('header') &&
                Configuration::updateValue('MYMODULE_NAME', 'writereview');
    }

 

    public function hookDisplaydisplayProductButtons($params)
    {
        
          return 'HELLO!';
    }

 

If I use the "leftColumn" works perfectly, but if I use the "displayProductButtons" it does not, what is the problem?

 

Please help
Thank You.

 

 

[usasat]

Never mid I found the problem

 

hookDisplaydisplayProductButtons is typed incorrectly: hookdisplayProductButtons

 

 

Thank You