Make nullable parameter type explicit using ? operator

src/Errors/GenericCarrierError.php

@@ -9,7 +9,7 @@
  */
 class GenericCarrierError extends AbstractCarrierError
 {
-    public function __construct(string $errorCode, string $detail, string $pointer = null)
+    public function __construct(string $errorCode, string $detail, ?string $pointer = null)
     {
         parent::__construct($errorCode, 'Generic carrier error', $detail, $pointer);
     }

src/Errors/InvalidInputContextError.php

@@ -11,7 +11,7 @@
  */
 class InvalidInputContextError extends AbstractCarrierError
 {
-    public function __construct(string $errorCode, string $detail, string $pointer = null)
+    public function __construct(string $errorCode, string $detail, ?string $pointer = null)
     {
         parent::__construct($errorCode, 'Invalid input context', $detail, $pointer);
     }

src/Errors/InvalidInputError.php

@@ -10,7 +10,7 @@
  */
 class InvalidInputError extends AbstractCarrierError
 {
-    public function __construct(string $errorCode, string $detail, string $pointer = null)
+    public function __construct(string $errorCode, string $detail, ?string $pointer = null)
     {
         parent::__construct($errorCode, 'Invalid input', $detail, $pointer);
     }

src/Errors/MissingInputError.php

@@ -10,7 +10,7 @@
  */
 class MissingInputError extends AbstractCarrierError
 {
-    public function __construct(string $errorCode, string $detail, string $pointer = null)
+    public function __construct(string $errorCode, string $detail, ?string $pointer = null)
     {
         parent::__construct($errorCode, 'Missing input', $detail, $pointer);
     }

src/Exceptions/AuthException.php

@@ -11,7 +11,7 @@
  */
 class AuthException extends AbstractException
 {
-    public function __construct(string $detail, int $status, Throwable $previous = null)
+    public function __construct(string $detail, int $status, ?Throwable $previous = null)
     {
         parent::__construct(
             $detail,

src/Exceptions/CarrierApiException.php

@@ -11,7 +11,7 @@
  */
 class CarrierApiException extends AbstractException
 {
-    public function __construct(int $status, array $carrierApiResponse, Throwable $previous = null)
+    public function __construct(int $status, array $carrierApiResponse, ?Throwable $previous = null)
     {
         parent::__construct(
             'There was a problem with the request to the carrier. The original response can be found in the meta under `carrier_response`.',

src/Exceptions/ExternalRequestException.php

@@ -11,7 +11,7 @@
  */
 class ExternalRequestException extends AbstractException
 {
-    public function __construct(int $status, int $externalStatus, array $externalError = [], Throwable $previous = null)
+    public function __construct(int $status, int $externalStatus, array $externalError = [], ?Throwable $previous = null)
     {
         parent::__construct(
             'An error occurred while making a request to an external service. When available, details can be found in the meta of this request. If the problem persists, please contact support.',

src/Exceptions/ForbiddenException.php

@@ -13,7 +13,7 @@
  */
 class ForbiddenException extends AbstractException
 {
-    public function __construct(string $message = null, Throwable $previous = null)
+    public function __construct(?string $message = null, ?Throwable $previous = null)
     {
         parent::__construct(
             $message ?? 'This user is not allowed to perform this action.',

src/Exceptions/InvalidAccessTokenException.php

@@ -12,7 +12,7 @@
  */
 class InvalidAccessTokenException extends AbstractException
 {
-    public function __construct(string $detail, Throwable $previous = null)
+    public function __construct(string $detail, ?Throwable $previous = null)
     {
         parent::__construct(
             $detail,

src/Exceptions/InvalidExternalErrorException.php

@@ -12,7 +12,7 @@
  */
 class InvalidExternalErrorException extends AbstractException
 {
-    public function __construct(Throwable $previous = null)
+    public function __construct(?Throwable $previous = null)
     {
         parent::__construct(
             'An error was thrown during the request to the external source. We cannot provide more information since the returned error was improperly formatted.',

src/Exceptions/InvalidJsonSchemaException.php

@@ -12,7 +12,7 @@
  */
 class InvalidJsonSchemaException extends AbstractException
 {
-    public function __construct(array $errors, Throwable $previous = null)
+    public function __construct(array $errors, ?Throwable $previous = null)
     {
         parent::__construct(
             'The supplied data is invalid according to our API Specification. See meta for details.',

src/Exceptions/InvalidScopeException.php

@@ -16,7 +16,7 @@ class InvalidScopeException extends AbstractException
 {
     use EnumTrait;
 
-    public function __construct(array $scopeSlugs, Throwable $previous = null)
+    public function __construct(array $scopeSlugs, ?Throwable $previous = null)
     {
         $scopeStrings = collect($scopeSlugs)
             ->map(fn (mixed $scopeSlug) => $this->getEnumValue($scopeSlug))

src/Exceptions/InvalidSecretException.php

@@ -12,7 +12,7 @@
  */
 class InvalidSecretException extends AbstractException
 {
-    public function __construct(Throwable $previous = null)
+    public function __construct(?Throwable $previous = null)
     {
         parent::__construct(
             'The provided secret is invalid. Please try again later. If the problem persists, contact customer support.',

src/Exceptions/MethodNotAllowedException.php

@@ -15,7 +15,7 @@
  */
 class MethodNotAllowedException extends AbstractException
 {
-    public function __construct(string $httpMethod, Throwable $previous = null)
+    public function __construct(string $httpMethod, ?Throwable $previous = null)
     {
         $httpMethod = strtoupper($httpMethod);
         parent::__construct(

src/Exceptions/MissingHeaderException.php

@@ -9,7 +9,7 @@
 
 class MissingHeaderException extends AbstractException
 {
-    public function __construct(array $headers, Throwable $previous = null)
+    public function __construct(array $headers, ?Throwable $previous = null)
     {
         parent::__construct(
             'The request does not contain the required header(s): ' . implode(', ', $headers) . '.',

src/Exceptions/MissingScopeException.php

@@ -12,7 +12,7 @@ class MissingScopeException extends AbstractException
 {
     use EnumTrait;
 
-    public function __construct(array $scopeSlugs, Throwable $previous = null)
+    public function __construct(array $scopeSlugs, ?Throwable $previous = null)
     {
         $scopeStrings = collect($scopeSlugs)
             ->map(fn (mixed $scopeSlug) => $this->getEnumValue($scopeSlug))

src/Exceptions/MissingTokenException.php

@@ -9,7 +9,7 @@
 
 class MissingTokenException extends AbstractException
 {
-    public function __construct(Throwable $previous = null)
+    public function __construct(?Throwable $previous = null)
     {
         parent::__construct(
             'No access token was provided for the request. Please add this to the \'Authorization: Bearer\' header.',

src/Exceptions/NotFoundException.php

@@ -12,7 +12,7 @@
  */
 class NotFoundException extends AbstractException
 {
-    public function __construct(string $detail, Throwable $previous = null)
+    public function __construct(string $detail, ?Throwable $previous = null)
     {
         parent::__construct(
             $detail,

src/Exceptions/RelationshipCannotBeModifiedException.php

@@ -13,7 +13,7 @@ class RelationshipCannotBeModifiedException extends AbstractException
 {
     use EnumTrait;
 
-    public function __construct(UnitEnum|string $relationshipType, Throwable $previous = null)
+    public function __construct(UnitEnum|string $relationshipType, ?Throwable $previous = null)
     {
         parent::__construct(
             sprintf(

src/Exceptions/ResourceCannotBeModifiedException.php

@@ -9,7 +9,7 @@
 
 class ResourceCannotBeModifiedException extends AbstractException
 {
-    public function __construct(string $message, Throwable $previous = null)
+    public function __construct(string $message, ?Throwable $previous = null)
     {
         parent::__construct(
             $message,

src/Exceptions/ResourceConflictException.php

@@ -12,7 +12,7 @@
  */
 class ResourceConflictException extends AbstractException
 {
-    public function __construct(string $field, Throwable $previous = null)
+    public function __construct(string $field, ?Throwable $previous = null)
     {
         parent::__construct(
             "The supplied resource `$field` is invalid.",

src/Exceptions/ResourceHandledBy3rdPartyException.php

@@ -13,7 +13,7 @@ class ResourceHandledBy3rdPartyException extends AbstractException
 {
     use EnumTrait;
 
-    public function __construct(UnitEnum|string $resourceType, string $platform, Throwable $previous = null)
+    public function __construct(UnitEnum|string $resourceType, string $platform, ?Throwable $previous = null)
     {
         parent::__construct(
             sprintf('One or more of the %s resource is handled by a 3rd party.', $this->getEnumValue($resourceType)),

src/Exceptions/ResourceNotFoundException.php

@@ -13,7 +13,7 @@ class ResourceNotFoundException extends AbstractException
 {
     use EnumTrait;
 
-    public function __construct(UnitEnum|string $resourceType, Throwable $previous = null)
+    public function __construct(UnitEnum|string $resourceType, ?Throwable $previous = null)
     {
         parent::__construct(
             sprintf('One or more of the %s resource could not be found.', $this->getEnumValue($resourceType)),

src/Exceptions/TooManyRequestsException.php

@@ -12,7 +12,7 @@
  */
 class TooManyRequestsException extends AbstractException
 {
-    public function __construct(string $detail, Throwable $previous = null)
+    public function __construct(string $detail, ?Throwable $previous = null)
     {
         parent::__construct(
             $detail,

src/Exceptions/UnprocessableEntityException.php

@@ -13,7 +13,7 @@
  */
 class UnprocessableEntityException extends AbstractException
 {
-    public function __construct(string $detail, Throwable $previous = null)
+    public function __construct(string $detail, ?Throwable $previous = null)
     {
         parent::__construct(
             $detail,

src/Http/UrlBuilder.php

@@ -24,7 +24,7 @@ class UrlBuilder
 
     protected ?string $fragment = null;
 
-    public function __construct(string $url = null)
+    public function __construct(?string $url = null)
     {
         if ($url !== null) {
             $this->setUrl($url);