diff --git a/src/AnimeClient/Types/Anime.php b/src/AnimeClient/Types/Anime.php
index b848669c..b9435937 100644
--- a/src/AnimeClient/Types/Anime.php
+++ b/src/AnimeClient/Types/Anime.php
@@ -25,27 +25,27 @@ class Anime extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public ?string $age_rating = '';
+	public ?string $age_rating;
 
 	/**
 	 * @var string
 	 */
-	public ?string $age_rating_guide = '';
+	public ?string $age_rating_guide;
 
 	/**
 	 * @var string
 	 */
-	public string $cover_image = '';
+	public ?string $cover_image;
 
 	/**
 	 * @var string|int
 	 */
-	public ?int $episode_count = 13;
+	public ?int $episode_count;
 
 	/**
 	 * @var string|int
 	 */
-	public ?int $episode_length = 24;
+	public ?int $episode_length;
 
 	/**
 	 * @var array
@@ -65,12 +65,12 @@ class Anime extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public string $show_type = '';
+	public ?string $show_type;
 
 	/**
 	 * @var string
 	 */
-	public string $slug = '';
+	public ?string $slug;
 
 	/**
 	 * @var AnimeAiringStatus
@@ -85,12 +85,12 @@ class Anime extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public string $synopsis = '';
+	public ?string $synopsis;
 
 	/**
 	 * @var string
 	 */
-	public string $title = '';
+	public ?string $title;
 
 	/**
 	 * @var array
@@ -100,10 +100,10 @@ class Anime extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public ?string $trailer_id = '';
+	public ?string $trailer_id;
 
 	/**
 	 * @var string
 	 */
-	public string $url = '';
+	public ?string $url;
 }
\ No newline at end of file
diff --git a/src/AnimeClient/Types/AnimeListItem.php b/src/AnimeClient/Types/AnimeListItem.php
index 8144159c..395960cb 100644
--- a/src/AnimeClient/Types/AnimeListItem.php
+++ b/src/AnimeClient/Types/AnimeListItem.php
@@ -23,12 +23,12 @@ final class AnimeListItem extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $id;
+	public ?string $id;
 
 	/**
 	 * @var string
 	 */
-	public $mal_id;
+	public ?string $mal_id;
 
 	/**
 	 * @var string
@@ -38,7 +38,7 @@ final class AnimeListItem extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $episodes = [
+	public array $episodes = [
 		'length' => 0,
 		'total' => 0,
 		'watched' => '',
@@ -47,7 +47,7 @@ final class AnimeListItem extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $airing = [
+	public array $airing = [
 		'status' => '',
 		'started' => '',
 		'ended' => '',
@@ -56,32 +56,32 @@ final class AnimeListItem extends AbstractType {
 	/**
 	 * @var Anime
 	 */
-	public $anime;
+	public ?Anime $anime;
 
 	/**
 	 * @var string
 	 */
-	public $notes = '';
+	public ?string $notes;
 
 	/**
 	 * @var bool
 	 */
-	public $private;
+	public bool $private = FALSE;
 
 	/**
 	 * @var bool
 	 */
-	public $rewatching;
+	public bool $rewatching = FALSE;
 
 	/**
 	 * @var int
 	 */
-	public $rewatched;
+	public int $rewatched = 0;
 
 	/**
-	 * @var int
+	 * @var string|int
 	 */
-	public $user_rating;
+	public $user_rating = '';
 
 	/**
 	 * One of Aviat\AnimeClient\API\Enum\AnimeWatchingStatus
diff --git a/src/AnimeClient/Types/Character.php b/src/AnimeClient/Types/Character.php
index 8dc9d43a..90c7b4f7 100644
--- a/src/AnimeClient/Types/Character.php
+++ b/src/AnimeClient/Types/Character.php
@@ -23,12 +23,12 @@ final class Character extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $castings;
+	public array $castings = [];
 
 	/**
 	 * @var string
 	 */
-	public $description;
+	public ?string $description;
 
 	/**
 	 * @var string
@@ -38,27 +38,27 @@ final class Character extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $included;
+	public array $included = [];
 
 	/**
 	 * @var Media
 	 */
-	public $media;
+	public ?Media $media;
 
 	/**
 	 * @var string
 	 */
-	public $name;
+	public ?string $name;
 
 	/**
 	 * @var array
 	 */
-	public $names;
+	public array $names = [];
 
 	/**
 	 * @var array
 	 */
-	public $otherNames;
+	public array $otherNames = [];
 
 	public function setMedia ($media): void
 	{
diff --git a/src/AnimeClient/Types/Characters.php b/src/AnimeClient/Types/Characters.php
index 6a4782f1..611e0b07 100644
--- a/src/AnimeClient/Types/Characters.php
+++ b/src/AnimeClient/Types/Characters.php
@@ -20,10 +20,10 @@ final class Characters extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $main;
+	public array $main = [];
 
 	/**
 	 * @var array
 	 */
-	public $supporting;
+	public array $supporting = [];
 }
\ No newline at end of file
diff --git a/src/AnimeClient/Types/Config.php b/src/AnimeClient/Types/Config.php
index af4f77b8..b311e0d4 100644
--- a/src/AnimeClient/Types/Config.php
+++ b/src/AnimeClient/Types/Config.php
@@ -25,17 +25,17 @@ class Config extends AbstractType {
 	/**
 	 * @var Config\Anilist
 	 */
-	public $anilist;
+	public ?Config\Anilist $anilist;
 
 	/**
 	 * @var Config\Cache
 	 */
-	public $cache;
+	public ?Config\Cache $cache;
 
 	/**
 	 * @var Config\Database
 	 */
-	public $database;
+	public ?Config\Database $database;
 
 	// ------------------------------------------------------------------------
 	// Settings in config.toml
@@ -44,7 +44,7 @@ class Config extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $asset_path; // Path to public folder for urls
+	public ?string $asset_path; // Path to public folder for urls
 
 	/**
 	 * @deprecated Use 'theme' instead
@@ -63,14 +63,14 @@ class Config extends AbstractType {
 	 *
 	 * @var string
 	 */
-	public $default_anime_list_path;
+	public ?string $default_anime_list_path;
 
 	/**
 	 * The list to redirect to from the root url
 	 *
 	 * @var 'anime' | 'manga'
 	 */
-	public $default_list;
+	public ?string $default_list;
 
 	/**
 	 * Default Manga list status page, values are listed in
@@ -78,44 +78,44 @@ class Config extends AbstractType {
 	 *
 	 * @var string
 	 */
-	public $default_manga_list_path;
+	public ?string $default_manga_list_path;
 
 	/**
 	 * @var 'cover_view' | 'list_view'
 	 */
-	public $default_view_type;
+	public ?string $default_view_type;
 
 	/**
 	 * @var string
 	 */
-	public $kitsu_username;
+	public ?string $kitsu_username;
 
 	/**
 	 * @var bool
 	 */
-	public $secure_urls = TRUE;
+	public bool $secure_urls = TRUE;
 
 	/**
 	 * @var bool
 	 */
-	public $show_anime_collection;
+	public bool $show_anime_collection = FALSE;
 
 	/**
 	 * @var bool
 	 */
-	public $show_manga_collection = FALSE;
+	public bool $show_manga_collection = FALSE;
 
 	/**
 	 * CSS theme: light, dark, or auto-switching
 	 *
 	 * @var 'auto' | 'light' | 'dark'
 	 */
-	public $theme;
+	public ?string $theme;
 
 	/**
 	 * @var string
 	 */
-	public $whose_list;
+	public ?string $whose_list;
 
 	// ------------------------------------------------------------------------
 	// Application config
@@ -124,12 +124,12 @@ class Config extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $menus;
+	public array $menus;
 
 	/**
 	 * @var array
 	 */
-	public $routes;
+	public array $routes;
 
 	// ------------------------------------------------------------------------
 	// Generated config values
@@ -138,32 +138,32 @@ class Config extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $asset_dir; // Path to public folder for local files
+	public ?string $asset_dir; // Path to public folder for local files
 
 	/**
 	 * @var string
 	 */
-	public $base_config_dir;
+	public ?string $base_config_dir;
 
 	/**
 	 * @var string
 	 */
-	public $config_dir;
+	public ?string $config_dir;
 
 	/**
 	 * @var string
 	 */
-	public $data_cache_path;
+	public ?string $data_cache_path;
 
 	/**
 	 * @var string
 	 */
-	public $img_cache_path;
+	public ?string $img_cache_path;
 
 	/**
 	 * @var string
 	 */
-	public $view_path;
+	public ?string $view_path;
 
 	public function setAnilist ($data): void
 	{
diff --git a/src/AnimeClient/Types/FormItem.php b/src/AnimeClient/Types/FormItem.php
index 8bf00e62..893dd858 100644
--- a/src/AnimeClient/Types/FormItem.php
+++ b/src/AnimeClient/Types/FormItem.php
@@ -28,17 +28,17 @@ class FormItem extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $anilist_item_id;
+	public ?string $anilist_item_id;
 
 	/**
 	 * @var string
 	 */
-	public $mal_id;
+	public ?string $mal_id;
 
 	/**
 	 * @var FormItemData
 	 */
-	public $data;
+	public ?FormItemData $data;
 
 	public function setData($value): void
 	{
diff --git a/src/AnimeClient/Types/FormItemData.php b/src/AnimeClient/Types/FormItemData.php
index 1f7f9bae..1058d0e8 100644
--- a/src/AnimeClient/Types/FormItemData.php
+++ b/src/AnimeClient/Types/FormItemData.php
@@ -23,12 +23,12 @@ class FormItemData extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $notes;
+	public ?string $notes;
 
 	/**
 	 * @var bool
 	 */
-	public $private;
+	public bool $private = FALSE;
 
 	/**
 	 * @var int
@@ -46,14 +46,14 @@ class FormItemData extends AbstractType {
 	public $ratingTwenty;
 
 	/**
-	 * @var int
+	 * @var string|int
 	 */
 	public $reconsumeCount;
 
 	/**
 	 * @var bool
 	 */
-	public $reconsuming;
+	public bool $reconsuming = FALSE;
 
 	/**
 	 * @var string
@@ -65,5 +65,5 @@ class FormItemData extends AbstractType {
 	 *
 	 * @var string
 	 */
-	public $updatedAt;
+	public ?string $updatedAt;
 }
diff --git a/src/AnimeClient/Types/Media.php b/src/AnimeClient/Types/Media.php
index cbda1048..e59a30c0 100644
--- a/src/AnimeClient/Types/Media.php
+++ b/src/AnimeClient/Types/Media.php
@@ -20,10 +20,10 @@ final class Media extends AbstractType {
 	/**
 	 * @var array
 	 */
-	public $anime = [];
+	public array $anime = [];
 
 	/**
 	 * @var array
 	 */
-	public $manga = [];
+	public array $manga = [];
 }
\ No newline at end of file
diff --git a/src/AnimeClient/Types/Person.php b/src/AnimeClient/Types/Person.php
index 2865d12a..b20882bc 100644
--- a/src/AnimeClient/Types/Person.php
+++ b/src/AnimeClient/Types/Person.php
@@ -28,17 +28,17 @@ final class Person extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $name;
+	public ?string $name;
 
 	/**
 	 * @var Characters
 	 */
-	public $characters;
+	public ?Characters $characters;
 
 	/**
 	 * @var array
 	 */
-	public $staff;
+	public array $staff = [];
 
 	public function setCharacters($characters): void
 	{
diff --git a/src/AnimeClient/Types/User.php b/src/AnimeClient/Types/User.php
index 3a2dfaab..e44b2889 100644
--- a/src/AnimeClient/Types/User.php
+++ b/src/AnimeClient/Types/User.php
@@ -23,45 +23,45 @@ final class User extends AbstractType {
 	/**
 	 * @var string
 	 */
-	public $about;
+	public ?string $about;
 
 	/**
 	 * @var string
 	 */
-	public $avatar;
+	public ?string $avatar;
 
 	/**
 	 * @var array
 	 */
-	public $favorites;
+	public ?array $favorites;
 
 	/**
 	 * @var string
 	 */
-	public $location;
+	public ?string $location;
 
 	/**
 	 * @var string
 	 */
-	public $name;
+	public ?string $name;
 
 	/**
 	 * @var string
 	 */
-	public $slug;
+	public ?string $slug;
 
 	/**
 	 * @var array
 	 */
-	public $stats;
+	public ?array $stats;
 
 	/**
 	 * @var array
 	 */
-	public $waifu;
+	public ?array $waifu;
 
 	/**
 	 * @var string
 	 */
-	public $website;
+	public ?string $website;
 }
\ No newline at end of file