Added type definitions for "ineum" (#38275)

* Added type definitions for "ineum"

ineum is the global object used by the Instana Website Monitoring API (https://docs.instana.io/products/website_monitoring/api/) to collect different kinds of information from websites/apps.

* Added tests and fixed header lint issue

* Fixed test file and added minimum TS version

* Merged definitions with same signature, added dummy version number

* Made userName and userEmail optional

* Removed unnecessary type reference

types/ineum/index.d.ts

@@ -0,0 +1,17 @@
+// Type definitions for non-npm package ineum-browser 1.0
+// Project: https://docs.instana.io/products/website_monitoring/api/
+// Definitions by: Enzo Volkmann <https://github.com/evolkmann>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.2
+
+// Website Monitoring API from Instana (status: 2019-09-10)
+
+declare function ineum(command: 'key' | 'reportingUrl' | 'page' | 'traceId', value: string): void;
+declare function ineum(command: 'user', userId: string, userName?: string, userEmail?: string): void;
+declare function ineum(command: 'meta', key: string, value: string): void;
+declare function ineum(command: 'autoClearResourceTimings' | 'wrapEventHandlers' | 'wrapTimers', enable: boolean): void;
+declare function ineum(command: 'getPageLoadId'): string | undefined;
+declare function ineum(command: 'reportError', error: string, opts?: {
+    componentStack: string
+}): void;
+declare function ineum(command: 'ignoreUrls' | 'ignoreErrorMessages' | 'whitelistedOrigins', values: RegExp[]): void;

types/ineum/ineum-tests.ts

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+// $ExpectType void
+ineum("key", "key");
+// $ExpectType void
+ineum("reportingUrl", "reportingUrl");
+// $ExpectType void
+ineum("page", "pageName");
+// $ExpectType void
+ineum("user", "userId", "userName", "userEmail");
+// $ExpectType void
+ineum("meta", "key", "value");
+// $ExpectType void
+ineum("traceId", "traceId");
+// $ExpectType void
+ineum("ignoreUrls", [/regex/]);
+// $ExpectType void
+ineum("autoClearResourceTimings", true);
+// $ExpectType void
+ineum("reportError", "error");
+// $ExpectType void
+ineum("reportError", "error", {
+    componentStack: "stack"
+});
+// $ExpectType void
+ineum("ignoreErrorMessages", [/regex/]);
+// $ExpectType void
+ineum("wrapEventHandlers", true);
+// $ExpectType void
+ineum("wrapTimers", true);
+// $ExpectType void
+ineum("whitelistedOrigins", [/regex/]);
+
+// $ExpectType string | undefined
+ineum("getPageLoadId");

types/ineum/tsconfig.json

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

types/ineum/tslint.json

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