Add types for react-native-dialogflow (#27617)

* Add types for react-native-dialogflow

* Fix lint issues.

* Formatting changes.

* Lint again.

types/react-native-dialogflow/index.d.ts

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+// Type definitions for react-native-dialogflow 3.2
+// Project: https://github.com/innFactory/react-native-dialogflow#readme
+// Definitions by: Jason Merino <https://github.com/jasonmerino>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.6
+
+export namespace Dialogflow {
+    const LANG_CHINESE_CHINA = 'zh-CN';
+    const LANG_CHINESE_HONGKONG: 'zh-HK';
+    const LANG_CHINESE_TAIWAN: 'zh-TW';
+    const LANG_DUTCH: 'nl';
+    const LANG_ENGLISH: 'en';
+    const LANG_ENGLISH_GB: 'en-GB';
+    const LANG_ENGLISH_US: 'en-US';
+    const LANG_FRENCH: 'fr';
+    const LANG_GERMAN: 'de';
+    const LANG_ITALIAN: 'it';
+    const LANG_JAPANESE: 'ja';
+    const LANG_KOREAN: 'ko';
+    const LANG_PORTUGUESE: 'pt';
+    const LANG_PORTUGUESE_BRAZIL: 'pt-BR';
+    const LANG_RUSSIAN: 'ru';
+    const LANG_SPANISH: 'es';
+    const LANG_UKRAINIAN: 'uk';
+
+    function setConfiguration(accessToken: string, languageTag: string): void;
+    function setEntities(entities: any[]): void;
+    function startListening(resultCallback: (result: object) => void, errorCallback: (error: Error) => void): void;
+    function finishListening(): void;
+    function requestEvent(
+        eventName: string,
+        eventData: object,
+        resultCallback: (result: object) => void,
+        errorCallback: (error: Error) => void
+    ): Promise<any>;
+    function requestQuery(
+        query: string,
+        resultCallback: (result: object) => void,
+        errorCallback: (error: Error) => void
+    ): Promise<any>;
+    function onListeningStarted(callback: () => void): void;
+    function onListeningFinished(callback: () => void): void;
+    function onAudioLevel(callback: (level: number) => void): void;
+    function setContexts(contexts: any[]): void;
+    function resetContexts(resultCallback: (result: object) => void, errorCallback: (error: Error) => void): void;
+    function setPermanentContexts(contexts: any[]): void;
+}
+
+export namespace Dialogflow_V2 {
+    const LANG_CHINESE_CHINA = 'zh-CN';
+    const LANG_CHINESE_HONGKONG: 'zh-HK';
+    const LANG_CHINESE_TAIWAN: 'zh-TW';
+    const LANG_DUTCH: 'nl';
+    const LANG_ENGLISH: 'en';
+    const LANG_ENGLISH_GB: 'en-GB';
+    const LANG_ENGLISH_US: 'en-US';
+    const LANG_FRENCH: 'fr';
+    const LANG_GERMAN: 'de';
+    const LANG_ITALIAN: 'it';
+    const LANG_JAPANESE: 'ja';
+    const LANG_KOREAN: 'ko';
+    const LANG_PORTUGUESE: 'pt';
+    const LANG_PORTUGUESE_BRAZIL: 'pt-BR';
+    const LANG_RUSSIAN: 'ru';
+    const LANG_SPANISH: 'es';
+    const LANG_UKRAINIAN: 'uk';
+
+    function setConfiguration(
+        serviceAccount: string,
+        privateKey: string,
+        language: string,
+        projectId: string
+    ): void;
+    function startListening(resultCallback: (result: object) => void, errorCallback: (error: Error) => void): void;
+    function finishListening(): void;
+    function requestEvent(
+        eventName: string,
+        eventData: object,
+        resultCallback: (result: object) => void,
+        errorCallback: (error: Error) => void
+    ): Promise<any>;
+    function requestQuery(
+        query: string,
+        resultCallback: (result: object) => void,
+        errorCallback: (error: Error) => void
+    ): Promise<any>;
+    function onListeningStarted(callback: () => void): void;
+    function onListeningFinished(callback: () => void): void;
+    function onAudioLevel(callback: (level: number) => void): void;
+    function setContexts(contexts: any[]): void;
+    function resetContexts(resultCallback: (result: object) => void, errorCallback: (error: Error) => void): void;
+    function setPermanentContexts(contexts: any[]): void;
+}

types/react-native-dialogflow/react-native-dialogflow-tests.tsx

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+import * as React from 'react';
+import { View } from 'react-native';
+import {
+    Dialogflow,
+    Dialogflow_V2,
+} from 'react-native-dialogflow';
+
+const accessToken = 'accessToken';
+const eventName = 'event';
+const eventData = {};
+const query = '';
+const serviceAccount = '_@_.iam.gserviceaccount.com';
+const privateKey = '-----BEGIN PRIVATE KEY-----\n_\n-----END PRIVATE KEY-----';
+const projectId = 'projectId';
+
+class Screen1 extends React.Component<any> {
+    componentDidMount() {
+        Dialogflow.setConfiguration(accessToken, Dialogflow.LANG_ENGLISH);
+        Dialogflow.setEntities([]);
+        Dialogflow.startListening(() => {}, () => {});
+        Dialogflow.finishListening();
+        Dialogflow.requestEvent(eventName, eventData, () => {}, () => {});
+        Dialogflow.requestQuery(query, () => {}, () => {});
+        Dialogflow.onListeningStarted(() => {});
+        Dialogflow.onListeningFinished(() => {});
+        Dialogflow.onAudioLevel(() => {});
+        Dialogflow.setContexts([]);
+        Dialogflow.resetContexts(() => {}, () => {});
+        Dialogflow.setPermanentContexts([]);
+
+        Dialogflow_V2.setConfiguration(serviceAccount, privateKey, Dialogflow_V2.LANG_ENGLISH, projectId);
+        Dialogflow_V2.startListening(() => {}, () => {});
+        Dialogflow_V2.finishListening();
+        Dialogflow_V2.requestEvent(eventName, eventData, () => {}, () => {});
+        Dialogflow_V2.requestQuery(query, () => {}, () => {});
+        Dialogflow_V2.onListeningStarted(() => {});
+        Dialogflow_V2.onListeningFinished(() => {});
+        Dialogflow_V2.onAudioLevel(() => {});
+        Dialogflow_V2.setContexts([]);
+        Dialogflow_V2.resetContexts(() => {}, () => {});
+        Dialogflow_V2.setPermanentContexts([]);
+    }
+
+    render() {
+        return (
+            <View />
+        );
+    }
+}

types/react-native-dialogflow/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "jsx": "react-native"
+    },
+    "files": [
+        "index.d.ts",
+        "react-native-dialogflow-tests.tsx"
+    ]}

types/react-native-dialogflow/tslint.json

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+{ "extends": "dtslint/dt.json" }