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Open polymorphism json dependencies question, details in thread.

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Every source tells me to use something like this. (Block's an interface, Comment and Body are its subs.)

But I am not seeing a form of subclass that takes a class and a lambda at all. All I see is two overloads with 3 arguments each, none of which are lambdas.

And this is the relevant part of the sub-project's gradle.

you should see both the <https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-core/kotlinx.serialization.modules/-serializers-module-builder/polymorphic.html|polymorphic> member function and the <https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-core/kotlinx.serialization.modules/polymorphic.html|polymorphic> extension function

Right, and I think I'm missing the extension. I faintly remembered having this problem before, and suspected a dependency disconnect.

it's not a dependency issue, they're in the same artifact

you need to import the extension, which should also happen if you choose the right overload in the IDE

Yes, there are two variants showing in intellisense, both take 3 arguments, neither takes a lambda.

intellisense is the name used by Microsoft for their IDEs

it should just work in a JetBrains IDE such as IntelliJ (or something based on it such as Android Studio) or Fleet… if not, try importing it manually

and what are the two that it auto-completes to anyway?

Aiiiiiiieeeeeee! Cache problem. Invalidated the cache, intellij now finds it. &lt;grumble grumble grumble&gt;.

Thanks for your efforts!

Two versions of the invocation. The first one works, the second one does not compile.

Typo -- I've tried a  _lot_ of things in the last two hours. :slightly_smiling_face:

Seems like intellij does not offer and cannot find the correct imports. Instead, it only sees the one in `SerializerModulesBuilder`.

With those two imports, both versions above compile.

Thanks, again, for the responses, <@UJQB4DJF7>, just your patient poking at it was a great help!