chore: add missing @types/websocket (#992)

Author: MasterOdin

lib/recognize-stream.ts

@@ -456,12 +456,12 @@ class RecognizeStream extends Duplex {
         this.socket._client.response.headers
       ) {
         resolve(
-          this.socket._client.response.headers['x-global-transaction-id']
+          (this.socket._client.response.headers['x-global-transaction-id'] as string)
         );
       } else {
         this.on('open', () =>
           resolve(
-            this.socket._client.response.headers['x-global-transaction-id']
+            (this.socket._client.response.headers['x-global-transaction-id'] as string)
           )
         );
         this.on('error', reject);

lib/synthesize-stream.ts

@@ -21,11 +21,6 @@ import { w3cwebsocket as w3cWebSocket } from 'websocket';
 import { SynthesizeWebSocketParams } from '../text-to-speech/v1';
 import { processUserParameters } from './websocket-utils';
 
-
-interface SynthesizeStream extends Readable {
-  _readableState;
-}
-
 /**
  * pipe()-able Node.js Readable stream - accepts text in the constructor and emits binary audio data in its 'message' events
  *

package-lock.json

@@ -79,10 +79,10 @@
   },
   "dependencies": {
     "@types/async": "^2.4.2",
-    "@types/csv-stringify": "^1.4.3",
     "@types/extend": "^3.0.1",
     "@types/isstream": "^0.1.0",
     "@types/node": "^11.9.4",
+    "@types/websocket": "^1.0.0",
     "async": "^2.6.2",
     "axios": "^0.18.0",
     "camelcase": "^5.3.1",