init.kt

private lateinit var codeGenerator: CodeGenerator
private lateinit var logger: KSPLogger

override fun init(
    options: Map<String, String>,
    kotlinVersion: KotlinVersion,
    codeGenerator: CodeGenerator,
    logger: KSPLogger
) {
    // set all these to member field
    this.codeGenerator = codeGenerator
    this.logger = logger
}