chore: simplify model initialization

Author: stainless-app[bot]

src/APIErrorObject.php

@@ -38,8 +38,7 @@ final class APIErrorObject implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/AuthenticationError.php

@@ -38,8 +38,7 @@ final class AuthenticationError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaAPIError.php

@@ -38,8 +38,7 @@ final class BetaAPIError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaAuthenticationError.php

@@ -38,8 +38,7 @@ final class BetaAuthenticationError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaBillingError.php

@@ -38,8 +38,7 @@ final class BetaBillingError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaErrorResponse.php

@@ -41,8 +41,7 @@ final class BetaErrorResponse implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaGatewayTimeoutError.php

@@ -38,8 +38,7 @@ final class BetaGatewayTimeoutError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaInvalidRequestError.php

@@ -38,8 +38,7 @@ final class BetaInvalidRequestError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaNotFoundError.php

@@ -38,8 +38,7 @@ final class BetaNotFoundError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**

src/Beta/BetaOverloadedError.php

@@ -38,8 +38,7 @@ final class BetaOverloadedError implements BaseModel
      */
     public function __construct()
     {
-        self::introspect();
-        $this->unsetOptionalProperties();
+        $this->initialize();
     }
 
     /**