Make Kotlin models Serializable using swagger codegen - kotlin

Question

I am trying to generate my API logic using swagger codegen. However, I need to implement java.io.Serializable for the generated models.
I tried to add the following:
"serializeModel": true
to the config.json file, which didn't do anything.
My generated models come out like this:
package dms.models
/**
*
* #param id
* #param name
*/
data class GetCompanyResponse (
val id: kotlin.Int? = null,
val name: kotlin.String? = null
) {
}
But I need them to be like this:
package dms.models
import java.io.Serializable
/**
*
* #param id
* #param name
*/
data class GetCompanyResponse (
val id: kotlin.Int? = null,
val name: kotlin.String? = null
): Serializable {
}
My config.json looks like this:
{
"modelPackage": "dms.models",
"apiPackage": "dms.api",
"serializableModel": true
}
And the script I call to generate looks like this:
swagger-codegen generate -i $SWAGGER_URL -l $CLIENT -o $OUT_DIR -D modelDocs=$MODEL_DOCS -D apiTests=$API_TESTS -D apiDocs=$API_DOCS --config config.json
Does anyone know what I need to change in order for this to work?
I am using swagger codegen v3.0.25