public function __construct($peak, $real, $final)
{
Assertion::integer($peak, 'Peak memory must be an integer, got "%s"');
Assertion::integer($real, 'Real memory must be an integer, got "%s"');
Assertion::integer($final, 'Final memory must be an integer, got "%s"');
$this->peak = $peak;
$this->real = $real;
$this->final = $final;
}