private function lookForTypeSpecifications(Scope $scope, Node $node) : Scope
{
$types = $this->typeSpecifier->specifyTypesInCondition(new SpecifiedTypes(), $scope, $node);
foreach ($types->getSureTypes() as $type) {
$scope = $scope->specifyExpressionType($type[0], $type[1]);
}
return $scope;
}