diff --git a/src/client.ts b/src/client.ts
index b2152de..afe631c 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -4,7 +4,8 @@ import { Commands } from './request/commands';
 import { IFaceXRequestBuilder, IRemoteTransport } from './interfaces';
 import * as R from './responses';
 
-type PhotoType = Buffer | string | NodeJS.ReadableStream;
+export type PhotoType = Buffer | string | NodeJS.ReadableStream;
+export type PhotoUploadPriority = 'A' | 'B' | 'C';
 
 export class Client extends ClientBase {
     public constructor(url: string, transport: IRemoteTransport, requestBuilder: IFaceXRequestBuilder) {
@@ -18,7 +19,7 @@ export class Client extends ClientBase {
 
     public async uploadPhotoForSearch(
         photo: PhotoType,
-        priority: 'A' | 'B' | 'C' = 'C',
+        priority: PhotoUploadPriority = 'C',
         comment = '',
         minSimialrity = 0,
     ): Promise<R.SearchUploadAck | R.SearchUploadError> {
diff --git a/src/videoclient.ts b/src/videoclient.ts
index 981c568..1f6f0d0 100644
--- a/src/videoclient.ts
+++ b/src/videoclient.ts
@@ -4,14 +4,16 @@ import { ClientRequestEncoder } from './encoders/client';
 import { VideoCommands } from './request/commands';
 import * as R from './responses';
 
-type VideoType = Buffer | string | NodeJS.ReadableStream;
+export type VideoType = Buffer | string | NodeJS.ReadableStream;
+export type VideoUploadPriority = 'A' | 'B' | 'C';
+export type VideoResultType = 'detect' | 'match';
 
 export class VideoClient extends ClientBase {
     public constructor(url: string, transport: IRemoteTransport, requestBuilder: IFaceXRequestBuilder) {
         super(url, transport, new ClientRequestEncoder(), requestBuilder);
     }
 
-    public async uploadVideo(video: VideoType, priority: 'A' | 'B' | 'C' = 'C'): Promise<R.VideoUploadAck> {
+    public async uploadVideo(video: VideoType, priority: VideoUploadPriority = 'C'): Promise<R.VideoUploadAck> {
         const builder = await this._requestBuilder
             .reset(VideoCommands.VIDEO_UPLOAD)
             .setClientID(priority)
@@ -24,7 +26,7 @@ export class VideoClient extends ClientBase {
         return this._sendRequest(await builder.get());
     }
 
-    public async getVideoResult(guid: string, type: 'detect' | 'match', archiveNumber = 1): Promise<R.VideoResult> {
+    public async getVideoResult(guid: string, type: VideoResultType, archiveNumber = 1): Promise<R.VideoResult> {
         const builder = this._requestBuilder.reset(VideoCommands.VIDEO_RESULT, guid);
         builder.setParams(type === 'detect' ? 1 : 2, archiveNumber);
         return this._sendRequest(await builder.get());