How do I generate a Java object and pass parameters like a directive? Can you give me an example?

[look2J]

How do I generate a Java object and pass parameters like a directive? Can you give me an example?
The version I use is 5.9.0

io.github.kobylynskyi
graphql-codegen-maven-plugin
5.9.0

directive @inContext(
    """language"""
    language: Language

    """country"""
    country: Country
) on QUERY

[look2J]

help！！