GraphQL\Type\Definition\IntType::coerceInt PHP Method

    private function coerceInt($value)
    {
        if ($value === '') {
            throw new InvariantViolation('Int cannot represent non 32-bit signed integer value: (empty string)');
        }
        if (false === $value || true === $value) {
            return (int) $value;
        }
        if (is_numeric($value) && $value <= self::MAX_INT && $value >= self::MIN_INT) {
            return (int) $value;
        }
        throw new InvariantViolation('Int cannot represent non 32-bit signed integer value: ' . Utils::printSafe($value));
    }