    private function checkDecode(array $options, array $headers, $stream)
    {
        // Automatically decode responses when instructed.
        if (!empty($options['decode_content'])) {
            $normalizedKeys = \GuzzleHttp\normalize_header_keys($headers);
            if (isset($normalizedKeys['content-encoding'])) {
                $encoding = $headers[$normalizedKeys['content-encoding']];
                if ($encoding[0] == 'gzip' || $encoding[0] == 'deflate') {
                    $stream = new Psr7\InflateStream(
                        Psr7\stream_for($stream)
                    );
                    // Remove content-encoding header
                    unset($headers[$normalizedKeys['content-encoding']]);
                    // Fix content-length header
                    if (isset($normalizedKeys['content-length'])) {
                        $length = (int) $stream->getSize();
                        if ($length == 0) {
                            unset($headers[$normalizedKeys['content-length']]);
                        } else {
                            $headers[$normalizedKeys['content-length']] = [$length];
                        }
                    }
                }
            }
        }

        return [$stream, $headers];
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.