PsiLiteralExpression for Pycharm Plugin

Hi, I'm working on a plugin for Pycharm, and wanted to implement new Language. So, I followed the tutorial https://plugins.jetbrains.com/docs/intellij/custom-language-support-tutorial.html

The example https://github.com/JetBrains/intellij-sdk-code-samples/tree/main/simple_language_plugin works fine, but if I want to do the same in my project, the PsiLiteralExpression is not available.

My Gradle build script has the following:

intellij
{
    version = '2022.3.1'
    type = 'PC'
    plugins = ["PythonCore"]
}

If I add change it as in the simple_language_plugin,:

plugins = ["PythonCore", "com.intellij.java"]

I get the error:

Cannot find builtin plugin 'com.intellij.java' for IDE: ....

 I found out, that the problem is, this plugin is not available for Pycharm flavor (type = 'PC').

My question is: Is it possible to use the PsiLiteralExpression in Pycharm plugins, or I need to do some workaround?

Thx,

Milo