add createNotificationChannel

index.d.ts

 declare module "react-native-fcm" {
-
-    type FCMEventType = "FCMTokenRefreshed" | "FCMNotificationReceived" | 'FCMDirectChannelConnectionChanged';
-    export module FCMEvent {
+  type FCMEventType =
+    | "FCMTokenRefreshed"
+    | "FCMNotificationReceived"
+    | "FCMDirectChannelConnectionChanged";
+  export namespace FCMEvent {
     const RefreshToken = "FCMTokenRefreshed";
     const Notification = "FCMNotificationReceived";
-        const DirectChannelConnectionChanged: 'FCMDirectChannelConnectionChanged'
+    const DirectChannelConnectionChanged: "FCMDirectChannelConnectionChanged";
   }
 
-    export module RemoteNotificationResult {
+  export namespace RemoteNotificationResult {
     const NewData = "UIBackgroundFetchResultNewData";
     const NoData = "UIBackgroundFetchResultNoData";
     const ResultFailed = "UIBackgroundFetchResultFailed";
   }
 
-    export module WillPresentNotificationResult {
+  export namespace WillPresentNotificationResult {
     const All = "UNNotificationPresentationOptionAll";
     const None = "UNNotificationPresentationOptionNone";
   }
 
-    export module NotificationType {
+  export namespace NotificationType {
     const Remote = "remote_notification";
     const NotificationResponse = "notification_response";
     const WillPresent = "will_present_notification";
@@ -26,23 +28,23 @@ declare module "react-native-fcm" {
   }
 
   export enum NotificationCategoryOption {
-        CustomDismissAction = 'UNNotificationCategoryOptionCustomDismissAction',
-        AllowInCarPlay = 'UNNotificationCategoryOptionAllowInCarPlay',
-        PreviewsShowTitle = 'UNNotificationCategoryOptionHiddenPreviewsShowTitle',
-        PreviewsShowSubtitle = 'UNNotificationCategoryOptionHiddenPreviewsShowSubtitle',
-        None = 'UNNotificationCategoryOptionNone'
+    CustomDismissAction = "UNNotificationCategoryOptionCustomDismissAction",
+    AllowInCarPlay = "UNNotificationCategoryOptionAllowInCarPlay",
+    PreviewsShowTitle = "UNNotificationCategoryOptionHiddenPreviewsShowTitle",
+    PreviewsShowSubtitle = "UNNotificationCategoryOptionHiddenPreviewsShowSubtitle",
+    None = "UNNotificationCategoryOptionNone"
   }
 
   export enum NotificationActionOption {
-        AuthenticationRequired = 'UNNotificationActionOptionAuthenticationRequired',
-        Destructive = 'UNNotificationActionOptionDestructive',
-        Foreground = 'UNNotificationActionOptionForeground',
-        None = 'UNNotificationActionOptionNone'
+    AuthenticationRequired = "UNNotificationActionOptionAuthenticationRequired",
+    Destructive = "UNNotificationActionOptionDestructive",
+    Foreground = "UNNotificationActionOptionForeground",
+    None = "UNNotificationActionOptionNone"
   }
 
   export enum NotificationActionType {
-        Default = 'UNNotificationActionTypeDefault',
-        TextInput = 'UNNotificationActionTypeTextInput',
+    Default = "UNNotificationActionTypeDefault",
+    TextInput = "UNNotificationActionTypeTextInput"
   }
 
   export interface Notification {
@@ -50,7 +52,7 @@ declare module "react-native-fcm" {
     opened_from_tray: boolean;
     from: string;
     notification: {
-            title?: string
+      title?: string;
       body: string;
       icon: string;
     };
@@ -100,7 +102,7 @@ declare module "react-native-fcm" {
   export interface ScheduleLocalNotification extends LocalNotification {
     id: string;
     fire_date: number;
-        repeat_interval?: "week" | "day" | "hour"
+    repeat_interval?: "week" | "day" | "hour";
   }
 
   export interface Subscription {
@@ -127,8 +129,14 @@ declare module "react-native-fcm" {
   export class FCM {
     static requestPermissions(): Promise<void>;
     static getFCMToken(): Promise<string>;
-        static on(event: "FCMTokenRefreshed", handler: (token: string) => void): Subscription;
-        static on(event: "FCMNotificationReceived", handler: (notification: Notification) => void): Subscription;
+    static on(
+      event: "FCMTokenRefreshed",
+      handler: (token: string) => void
+    ): Subscription;
+    static on(
+      event: "FCMNotificationReceived",
+      handler: (notification: Notification) => void
+    ): Subscription;
     static subscribeToTopic(topic: string): void;
     static unsubscribeFromTopic(topic: string): void;
     static getInitialNotification(): Promise<Notification>;
@@ -147,11 +155,17 @@ declare module "react-native-fcm" {
     static getBadgeNumber(): Promise<number>;
     static send(id: string, data: any): void;
 
-        static enableDirectChannel(): void
-        static isDirectChannelEstablished(): Promise<boolean>
-        static getAPNSToken(): Promise<string>
+    static enableDirectChannel(): void;
+    static isDirectChannelEstablished(): Promise<boolean>;
+    static getAPNSToken(): Promise<string>;
 
     static setNotificationCategories(categories: NotificationCategory[]): void;
+    static createNotificationChannel(config: {
+      id: string;
+      name: string;
+      description?: string;
+      priority?: string;
+    });
   }
 
   export default FCM;