Update contentstack to include Assets and missing definitions (#42162)

types/contentstack/contentstack-tests.ts

@@ -167,3 +167,35 @@ stack
     .Query()
     .containedIn('key', 'value')
     .find();
+stack
+    .ContentType('content_type')
+    .Entry('an_entry')
+    .fetch();
+stack
+    .ContentType('content_type')
+    .Assets('asset')
+    .toJSON()
+    .fetch();
+stack
+    .ContentType('content_type')
+    .Assets('asset')
+    .addParam('key', 'value')
+    .fetch();
+stack.Entry('uid').fetch();
+stack.Assets('uid').fetch();
+stack.Query().fetch();
+stack
+    .setPort(9000)
+    .setProtocol('https')
+    .setHost('somehost')
+    .setCachePolicy(1)
+    .setCacheProvider({ provider: 'provider' })
+    .clearByQuery()
+    .clearByContentType()
+    .clearAll()
+    .getCacheProvider()
+    .getLastActivites()
+    .getContentTypes('param')
+    .sync({});
+stack
+    .imageTransform('url', { some: 'params' });

types/contentstack/index.d.ts

@@ -18,12 +18,40 @@ export class Stack {
     constructor(api_key: string, access_token: string, environment_name: string);
 
     ContentType(uid: string): ContentType;
+    Entry(uid: string): Entry;
+    Assets(uid: string): Assets;
+    Query(): Query;
+    fetch(): ContentType;
+
+    setPort(port: number): Stack;
+    setProtocol(protocol: string): Stack;
+    setHost(host: string): Stack;
+    setCachePolicy(policy: number): Stack;
+    setCacheProvider(provider: object): Stack;
+    clearByQuery(): Stack;
+    clearByContentType(): Stack;
+    clearAll(): Stack;
+    getCacheProvider(): Stack;
+    getLastActivites(): Stack;
+    getContentTypes(param: string): Stack;
+    sync(params: object): Promise<any>;
+    imageTransform(url: string, params: any): string;
 }
 
 export class ContentType {
     constructor();
 
     Query(): Query;
+    Entry(uid: string): Entry;
+    Assets(uid: string): Assets;
+}
+
+export class Assets {
+    constructor();
+
+    toJSON(): Assets;
+    addParam(key: string, value: any): Assets;
+    fetch(): Promise<any>;
 }
 
 export class Entry {