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Is it possible to use a complex and big extension directly as an input to a task? If so, what is the proper way to do it?

When I try to use directly, I get this error:
```* What went wrong:
Execution failed for task ':analyzeResults'.
&gt; Cannot fingerprint input property 'extension': value 'extension 'weeklyReport'' cannot be serialized.```

task input is Nested and all public properties have correct input annotations. Google "authoring Gradle tasks"

It can be done, though a more idiomatic approach is to pass in just what is required.  Your error is due to having data types in the extension that are not Setializable.