Quick way to specify type for Observable in Typescript

Exploring Shortcut Declarations

When working with TypeScript, I often take a shortcut when declaring object shapes. Instead of creating an interface first and then specifying that the object conforms to that type, I simply do:

object: { fizz: boolean, buzz: boolean } = { fizz: false, buzz: true }

This approach makes sense to me in terms of reducing code length, especially for objects that are only used once.

Pondering about RxJS Observable

Is there a way to define an object shape for an RxJS Observable in a similar concise manner? I was thinking it could look like:

public getBazz(): Observable<{ fizz: boolean, buzz: boolean }> { ... }

However, TypeScript seems to have issues with this specific format, and I am unsure of the correct syntax.

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