Your project must not contain invalid function or method calls 6

More information: https://insight.symfony.com/what-we-analyse/php.invalid_call

in src/SendGrid.php, line 22 
  1.     {
  2.         $isValidInstance = $this instanceof Mailable || $this instanceof MailMessage;
  4.         if ($isValidInstance && $this->mailDriver() === 'sendgrid') {
  5.             $this->withSymfonyMessage(function (Email $email) use ($params) {
  6.                 $email->embed(static::sgEncode($params), SendgridTransport::REQUEST_BODY_PARAMETER);
    
    
    Parameter #1 $params of static method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::sgEncode() expects array<string, mixed>|string, array<string, mixed>|string|null given.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.             });
  8.         }
  10.         return $this;
  11.     }
in src/SendgridTransportServiceProvider.php, line 23 
  1.     public function register()
  2.     {
  3.         $this->app->afterResolving(MailManager::class, function (MailManager $mail_manager) {
  4.             $mail_manager->extend('sendgrid', function ($config) {
  5.                 if (! isset($config['api_key'])) {
  6.                     $config = $this->app['config']->get('services.sendgrid', []);
    
    
    Cannot call method get() on mixed.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.                 }
  8.                 $client = new HttpClient(Arr::get($config, 'guzzle', []));
  9.                 $endpoint = $config['endpoint'] ?? null;
  11.                 return new SendgridTransport($client, $config['api_key'], $endpoint);
in src/SendgridTransportServiceProvider.php, line 25 
  1.         $this->app->afterResolving(MailManager::class, function (MailManager $mail_manager) {
  2.             $mail_manager->extend('sendgrid', function ($config) {
  3.                 if (! isset($config['api_key'])) {
  4.                     $config = $this->app['config']->get('services.sendgrid', []);
  5.                 }
  6.                 $client = new HttpClient(Arr::get($config, 'guzzle', []));
    
    
    Parameter #1 $array of static method Illuminate\Support\Arr::get() expects array|ArrayAccess, mixed given.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.                 $endpoint = $config['endpoint'] ?? null;
  9.                 return new SendgridTransport($client, $config['api_key'], $endpoint);
  10.             });
in src/Transport/SendgridTransport.php, line 259 
  1.                 case 'api_key':
  2.                     $this->apiKey = $val;
  4.                     continue 2;
  5.                 case 'personalizations':
  6.                     $this->setPersonalizations($data, $val);
    
    
    Parameter #2 $personalizations of method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::setPersonalizations() expects array<int, array<string, mixed>>, mixed given.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  8.                     continue 2;
  9.                 case 'attachments':
  10.                     $val = array_merge($this->attachments, $val);
  11.                     break;
in src/Transport/SendgridTransport.php, line 263 
  1.                 case 'personalizations':
  2.                     $this->setPersonalizations($data, $val);
  4.                     continue 2;
  5.                 case 'attachments':
  6.                     $val = array_merge($this->attachments, $val);
    
    
    Parameter #2 ...$arrays of function array_merge expects array, mixed given.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.                     break;
  8.             }
  9.             Arr::set($data, $key, $val);
  10.         }
in src/Transport/SendgridTransport.php, line 297 
  1.      *
  2.      * @throws ClientException
  3.      */
  4.     protected function post(array $payload): ResponseInterface
  5.     {
  6.         return $this->client->request('POST', $this->endpoint, $payload);
    
    
    Parameter #3 $options of method GuzzleHttp\ClientInterface::request() expects array{base_uri?: Psr\Http\Message\UriInterface|string, allow_redirects?: array{max?: int, strict?: bool, referer?: bool, protocols?: non-empty-array<string>, on_redirect?: callable(Psr\Http\Message\RequestInterface, Psr\Http\Message\ResponseInterface, Psr\Http\Message\UriInterface): mixed, track_redirects?: bool}|bool, auth?: array{0: string, 1: string, 2?: string|null}|string|false|null, body?: callable-object|Iterator|resource|string|Stringable|null, cert?: array{0: string, 1?: string|null}|string, cert_type?: string, connect_timeout?: float|int, cookies?: GuzzleHttp\Cookie\CookieJarInterface|false, ...}, array<string, mixed> given.
    
    
    
                    
    Time to fix: about 9 minutes
    
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                                    Last edited  by s-ichikawa
                    
                            
    
        
    
    
  7.     }
  9.     public function __toString(): string
  10.     {
  11.         return 'sendgrid';

Your project should not use invalid return types 5

More information: https://insight.symfony.com/what-we-analyse/php.invalid_return_typehint

in src/SendGrid.php, line 34 
  1.     /**
  2.      * @return string
  3.      */
  4.     private function mailDriver()
  5.     {
  6.         return function_exists('config') ? config('mail.default', config('mail.driver')) : env('MAIL_MAILER', env('MAIL_DRIVER'));
    
    
    Method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::mailDriver() should return string but returns mixed.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.     }
  9.     /**
  10.      * @param  array<string, mixed>|string  $params
  11.      * @return string
in src/SendGrid.php, line 47 
  1.     {
  2.         if (is_string($params)) {
  3.             return $params;
  4.         }
  6.         return json_encode($params);
    
    
    Method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::sgEncode() should return string but returns string|false.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.     }
  9.     /**
  10.      * @param  string|array<string, mixed>  $strParams
  11.      * @return array<string, mixed>
in src/SendGrid.php, line 61 
  1.         if (! is_string($strParams)) {
  2.             return $strParams;
  3.         }
  4.         $params = json_decode($strParams, true);
  6.         return is_array($params) ? $params : [];
    
    
    Method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::decode() should return array<string, mixed> but returns array<mixed>.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.     }
  8. }
in src/Transport/SendgridTransport.php, line 180 
  1.                 'type' => 'text/html',
  2.                 'value' => $email->getHtmlBody(),
  3.             ];
  4.         }
  6.         return $contents;
    
    
    Method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::getContents() should return array<int, array<string, string>> but returns list<array<string, resource|string>>.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.     }
  9.     /**
  10.      * @return array<string, string>|null
  11.      */
in src/Transport/SendgridTransport.php, line 226 
  1.         return $attachments;
  2.     }
  4.     private function getAttachmentName(DataPart $dataPart): string
  5.     {
  6.         return $dataPart->getPreparedHeaders()->getHeaderParameter('Content-Disposition', 'filename');
    
    
    Method Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport::getAttachmentName() should return string but returns string|null.
    
    
    
                    
    Time to fix: about 9 minutes
    
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  7.     }
  9.     private function getAttachmentContentType(DataPart $dataPart): string
  10.     {
  11.         return $dataPart->getMediaType().'/'.$dataPart->getMediaSubtype();

Your project must not contain invalid instantiations 3

More information: https://insight.symfony.com/what-we-analyse/php.invalid_instantiation

in src/SendgridTransportServiceProvider.php, line 25 
  1.         $this->app->afterResolving(MailManager::class, function (MailManager $mail_manager) {
  2.             $mail_manager->extend('sendgrid', function ($config) {
  3.                 if (! isset($config['api_key'])) {
  4.                     $config = $this->app['config']->get('services.sendgrid', []);
  5.                 }
  6.                 $client = new HttpClient(Arr::get($config, 'guzzle', []));
    
    
    Parameter #1 $config of class GuzzleHttp\Client constructor expects array{handler?: callable(Psr\Http\Message\RequestInterface, array<mixed>): GuzzleHttp\Promise\PromiseInterface<Psr\Http\Message\ResponseInterface, mixed>, base_uri?: Psr\Http\Message\UriInterface|string, transport_sharing?: string|null, max_host_connections?: int|null, max_total_connections?: int|null, allow_redirects?: array{max?: int, strict?: bool, referer?: bool, protocols?: non-empty-array<string>, on_redirect?: callable(Psr\Http\Message\RequestInterface, Psr\Http\Message\ResponseInterface, Psr\Http\Message\UriInterface): mixed, track_redirects?: bool}|bool, auth?: array{0: string, 1: string, 2?: string|null}|string|false|null, body?: callable-object|Iterator|resource|string|Stringable|null, ...}, mixed given.
    
    
    
                    
    Time to fix: about 1 hour
    
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  7.                 $endpoint = $config['endpoint'] ?? null;
  9.                 return new SendgridTransport($client, $config['api_key'], $endpoint);
  10.             });
in src/SendgridTransportServiceProvider.php, line 28 
  1.                     $config = $this->app['config']->get('services.sendgrid', []);
  2.                 }
  3.                 $client = new HttpClient(Arr::get($config, 'guzzle', []));
  4.                 $endpoint = $config['endpoint'] ?? null;
  6.                 return new SendgridTransport($client, $config['api_key'], $endpoint);
    
    
    Parameter #3 $endpoint of class Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport constructor expects string|null, mixed given.
    
    
    
                    
    Time to fix: about 1 hour
    
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  7.             });
  9.         });
  10.     }
  11. }
in src/SendgridTransportServiceProvider.php, line 28 
  1.                     $config = $this->app['config']->get('services.sendgrid', []);
  2.                 }
  3.                 $client = new HttpClient(Arr::get($config, 'guzzle', []));
  4.                 $endpoint = $config['endpoint'] ?? null;
  6.                 return new SendgridTransport($client, $config['api_key'], $endpoint);
    
    
    Parameter #2 $api_key of class Sichikawa\LaravelSendgridDriver\Transport\SendgridTransport constructor expects string, mixed given.
    
    
    
                    
    Time to fix: about 1 hour
    
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  7.             });
  9.         });
  10.     }
  11. }