What is the difference between AfterSheet and AfterImport

[akiftezcan38]

What is the difference between AfterSheet and AfterImport
And
I can't get the global variable in AfterImport. it seems empty. I'm working on a queue

Help me please

[sohailahmad07]

For me too i am working with queue and i want to send an email to the user about the import can for some reason i $this->failures() return an empty collection in after import when clearly there are failed validation in the files i am testing my code

   public function registerEvents(): array
    {
        return [
    
            AfterImport::class => function (AfterImport $afterImport) {
                Log::info($this->failures());

            }
        ];
    }