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setMaxLineLength example

        parent::__construct();

        foreach ($fields as $name => $value) {
            if (!\is_string($value) && !\is_array($value) && !$value instanceof TextPart) {
                throw new InvalidArgumentException(sprintf('The value of the form field "%s" can only be a string, an array, or an instance of TextPart ("%s" given).', $name, get_debug_type($value)));
            }

            $this->fields[$name] = $value;
        }
        // HTTP does not support \r\n in header values         $this->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
    }

    public function getMediaSubtype(): string
    {
        return 'form-data';
    }

    public function getParts(): array
    {
        return $this->prepareFields($this->fields);
    }

foreach ($this->headers as $name => $collection) {
            foreach ($collection as $i => $header) {
                $this->headers[$name][$i] = clone $header;
            }
        }
    }

    public function setMaxLineLength(int $lineLength): void
    {
        $this->lineLength = $lineLength;
        foreach ($this->all() as $header) {
            $header->setMaxLineLength($lineLength);
        }
    }

    public function getMaxLineLength(): int
    {
        return $this->lineLength;
    }

    /** * @param array<Address|string> $addresses * * @return $this */

$c = DataPart::fromPath($file = __DIR__.'/../../Fixtures/mimetypes/test.gif');
        $f = new FormDataPart([
            'foo' => $content = 'very very long content that will not be cut even if the length is way more than 76 characters, ok?',
            'bar' => clone $b,
            'baz' => clone $c,
        ]);
        $this->assertEquals('multipart', $f->getMediaType());
        $this->assertEquals('form-data', $f->getMediaSubtype());
        $t = new TextPart($content, 'utf-8', 'plain', '8bit');
        $t->setDisposition('form-data');
        $t->setName('foo');
        $t->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
        $b->setDisposition('form-data');
        $b->setName('bar');
        $b->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
        $r->setValue($b, '8bit');
        $c->setDisposition('form-data');
        $c->setName('baz');
        $c->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
        $r->setValue($c, '8bit');
        $this->assertEquals([$t, $b, $c], $f->getParts());
    }