Litipk\BigNumbers\Decimal::isPositive PHP Method

    public function isPositive()
    {
        return $this->value[0] !== '-' && !$this->isZero();
    }

 /**
  * Checks if the value represented by this object is positive
  *
  * @return bool
  */
 public function isPositive()
 {
     return $this->amount->isPositive();
 }