diff --git a/src/CameraRoll.ts b/src/CameraRoll.ts
index 075fab0..b8d42c9 100644
--- a/src/CameraRoll.ts
+++ b/src/CameraRoll.ts
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
-import { Platform } from 'react-native';
+import {Platform} from 'react-native';
 import RNCCameraRoll from './NativeCameraRollModule';
 
 const GROUP_TYPES_OPTIONS = {
@@ -180,18 +180,18 @@ export type Album = {
 };
 
 export type ThumbnailSize = {
-  height: number,
-  width: number
+  height: number;
+  width: number;
 };
 
 export type PhotoThumbnailOptions = {
-  allowNetworkAccess: boolean,  //iOS only
-  targetSize: ThumbnailSize,
-  quality: number
+  allowNetworkAccess: boolean; //iOS only
+  targetSize: ThumbnailSize;
+  quality: number;
 };
 
 export type PhotoThumbnail = {
-  thumbnailBase64: string,
+  thumbnailBase64: string;
 };
 
 /**
@@ -214,7 +214,7 @@ export class CameraRoll {
 
   /**
    * Returns total iOS image count
- */
+   */
   static getPhotosCountiOS(): Promise<number> {
     return RNCCameraRoll.getPhotosCountiOS('');
   }
@@ -224,54 +224,53 @@ export class CameraRoll {
   static getFavoritesiOS(): Promise<Album> {
     return RNCCameraRoll.getFavoritesiOS('');
   }
-}
 
   /**
    * Saves the photo or video to the camera roll or photo library.
    *
    */
   static save(
-  tag: string,
-  options: SaveToCameraRollOptions = {},
-): Promise < string > {
-  let { type = 'auto' } = options;
-const { album = '' } = options;
-if (tag === '') throw new Error('tag must be a valid string');
+    tag: string,
+    options: SaveToCameraRollOptions = {},
+  ): Promise<string> {
+    let {type = 'auto'} = options;
+    const {album = ''} = options;
+    if (tag === '') throw new Error('tag must be a valid string');
 
-if (type === 'auto') {
-  const fileExtension = tag.split('.').slice(-1)[0] ?? '';
-  if (['mov', 'mp4'].indexOf(fileExtension.toLowerCase()) >= 0)
-    type = 'video';
-  else type = 'photo';
-}
-return RNCCameraRoll.saveToCameraRoll(tag, { type, album });
+    if (type === 'auto') {
+      const fileExtension = tag.split('.').slice(-1)[0] ?? '';
+      if (['mov', 'mp4'].indexOf(fileExtension.toLowerCase()) >= 0)
+        type = 'video';
+      else type = 'photo';
+    }
+    return RNCCameraRoll.saveToCameraRoll(tag, {type, album});
   }
 
   static saveToCameraRoll(
-  tag: string,
-  type ?: 'photo' | 'video' | 'auto',
-): Promise < string > {
-  console.warn(
-    'CameraRoll.saveToCameraRoll(tag, type) is deprecated.  Use the save function instead',
-  );
-  return CameraRoll.save(tag, { type });
-}
+    tag: string,
+    type?: 'photo' | 'video' | 'auto',
+  ): Promise<string> {
+    console.warn(
+      'CameraRoll.saveToCameraRoll(tag, type) is deprecated.  Use the save function instead',
+    );
+    return CameraRoll.save(tag, {type});
+  }
 
   static getAlbums(
-  params: GetAlbumsParams = { assetType: 'All' },
-): Promise < Album[] > {
-  return RNCCameraRoll.getAlbums(params);
-}
+    params: GetAlbumsParams = {assetType: 'All'},
+  ): Promise<Album[]> {
+    return RNCCameraRoll.getAlbums(params);
+  }
 
   static getParamsWithDefaults(params: GetPhotosParams): GetPhotosParams {
-  const newParams = { ...params };
-  if (newParams.assetType === undefined) newParams.assetType = 'All';
+    const newParams = {...params};
+    if (newParams.assetType === undefined) newParams.assetType = 'All';
 
-  if (newParams.groupTypes === undefined && Platform.OS !== 'android')
-    newParams.groupTypes = 'All';
+    if (newParams.groupTypes === undefined && Platform.OS !== 'android')
+      newParams.groupTypes = 'All';
 
-  return newParams;
-}
+    return newParams;
+  }
 
   /**
    * Returns a Promise with photo identifier objects from the local camera
@@ -279,10 +278,10 @@ return RNCCameraRoll.saveToCameraRoll(tag, { type, album });
    *
    * See https://facebook.github.io/react-native/docs/cameraroll.html#getphotos
    */
-  static getPhotos(params: GetPhotosParams): Promise < PhotoIdentifiersPage > {
-  params = CameraRoll.getParamsWithDefaults(params);
-  return RNCCameraRoll.getPhotos(params);
-}
+  static getPhotos(params: GetPhotosParams): Promise<PhotoIdentifiersPage> {
+    params = CameraRoll.getParamsWithDefaults(params);
+    return RNCCameraRoll.getPhotos(params);
+  }
 
   /**
    * Returns a Promise with photo internal path.
@@ -293,23 +292,26 @@ return RNCCameraRoll.saveToCameraRoll(tag, { type, album });
    * @returns Promise<PhotoIdentifier>
    */
   static iosGetImageDataById(
-  internalID: string,
-  convertHeicImages = false,
-): Promise < PhotoIdentifier > {
-  const conversionOption: PhotoConvertionOptions = {
-    convertHeicImages: convertHeicImages,
-  };
-  return RNCCameraRoll.getPhotoByInternalID(internalID, conversionOption);
-}
+    internalID: string,
+    convertHeicImages = false,
+  ): Promise<PhotoIdentifier> {
+    const conversionOption: PhotoConvertionOptions = {
+      convertHeicImages: convertHeicImages,
+    };
+    return RNCCameraRoll.getPhotoByInternalID(internalID, conversionOption);
+  }
 
-    /**
+  /**
    * Returns a Promise with thumbnail photo.
    *
    * @param internalID - PH photo internal ID.
    * @param options - thumbnail photo options.
    * @returns Promise<PhotoThumbnail>
    */
-    static getPhotoThumbnail(internalID: string, options: PhotoThumbnailOptions): Promise < PhotoThumbnail > {
-  return RNCCameraRoll.getPhotoThumbnail(internalID, options);
-}
+  static getPhotoThumbnail(
+    internalID: string,
+    options: PhotoThumbnailOptions,
+  ): Promise<PhotoThumbnail> {
+    return RNCCameraRoll.getPhotoThumbnail(internalID, options);
+  }
 }