Export types/interfaces/etc from central index.ts file for consumer usage

[brandongregoryscott]

Prerequisites

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Summary

Currently, while Credentials, CredentialsArgs, TwitterStream, etc. are defined in TypeScript definition files, and included in the build, they cannot be imported without digging into the structure of the package:

import Credentials, { CredentialsArgs } from "twitter-v2/build/Credentials";
import TwitterStream from "twitter-v2/build/TwitterStream";

With an index.ts file that exports these types/class definitions, it could simplify the importing structure alongside the main client:

import Twitter, { Credentials, CredentialsArgs, TwitterStream } from "twitter-v2";

Motivation

For one, users can more easily figure out what is exported for public use through the index.ts file - there may be certain types/classes that aren't meant to be publicly exported that won't exist in here, but can be used internally. It also just cleans up the number of imports that a user might have for various parts of the package, without needing to know what the structure of the package looks like.

On a related note, it may be worth defining the files property in the package.json file which would send out the built files only - there's no need to pack up the src/*.ts files when consumers are actually using the build/*.js and build/*.d.ts files.

Describe alternatives you've considered

Additional context