feat(react-native-appsflyer): complete definition

[fabianlee1211]

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---

Hello there,

This is a package definition for React Native AppsFlyer.

Package: https://www.npmjs.com/package/react-native-appsflyer
Source: https://github.com/AppsFlyerSDK/react-native-appsflyer

Cheers!

[typescript-bot]

👋 Hi there! I’ve run some quick measurements against master and your PR. These metrics should help the humans reviewing this PR gauge whether it might negatively affect compile times or editor responsiveness for users who install these typings.

Let’s review the numbers, shall we?

These typings are for a package that doesn’t yet exist on master, so I don’t have anything to compare against yet! In the future, I’ll be able to compare PRs to react-native-appsflyer with its source on master.

Comparison details 📊

Batch compilation
Type count	2219
Assignability cache size	120
Language service measurements
Samples taken	53
Identifiers in tests	53
getCompletionsAtPosition
Mean duration (ms)	83.2
Mean CV	24.7%
Worst duration (ms)	118.2
Worst identifier	appsFlyer
getQuickInfoAtPosition
Mean duration (ms)	83.7
Mean CV	24.7%
Worst duration (ms)	109.7
Worst identifier	getAppsFlyerUID
System information
Node version	v12.14.1
CPU count	2
CPU speed	2.397 GHz
CPU model	Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz
CPU Architecture	x64
Memory	6.8 GiB
Platform	linux
Release	4.15.0-1066-azure

[typescript-bot]

@fabianlee1211 Thank you for submitting this PR!

Because this is a new definition, a DefinitelyTyped maintainer will be reviewing this PR in the next few days once the Travis CI build passes.

In the meantime, if the build fails or a merge conflict occurs, I'll let you know. Have a nice day!

[jessetrinity]

I'm not familiar at all with what exporting a default namespace is supposed to do (I didn't think it was even supported). Can you help me out? Thanks!

[fabianlee1211]

I'll be honest that I'm not an expert in TS, I referenced other libraries here and came up with writing it this way.

The way I think of it was to follow how the library is implemented, which is just a bunch of methods attached to a JS object. I was trying to do the same with namespace so that it follows how the library APIs are used i.e appsFlyer.<method>.

Thanks for reviewing though! I'm learning along the way.

About supporting export default namespace, I suppose it is related to this PR.
microsoft/TypeScript#18628