public function addArg(string $name, int $mode = null, string $description = '', $default = null): self
    {
        return $this->addArgument($name, $mode, $description, $default);
    }
public function addArg(string $name, int $mode = null, string $description = '', $default = null): self
    {
        return $this->addArgument($name, $mode, $description, $default);
    }
public function addArg ( string $ name , int $ mode = null , string $ description = '' , $ default = null ) : self { return $ this -> addArgument ( $ name , $ mode , $ description , $ default ) ; }
alias of the addArgument
@param string   $name
@param int|null $mode
@param string   $description
@param null     $default
@return InputDefinition
alias of the addArgument