``` DriverJson::class.memberProperties.forEach {...
# reflect
j
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DriverJson::class.memberProperties.forEach { property ->
			println("${property.name}: ${property.javaClass.isEnum}")
		}
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@JsonIgnoreProperties(ignoreUnknown = true)
data class DriverJson(

	var id: Int? = null,
	var idNumber: String? = "",
	var nationality: CountryType? = CountryType.None,
        ...
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enum class CountryType() {

	AF, AX, AL, DZ, AS, AD ….
prints:
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id: false
idNumber: false
nationality: false
…