SampleRequestPayload.kt

data class Person(var name: String? = null, var address: Address? = null, var age: Int? = null, var sex: String? = null, var lat: Double? = null, var lng: Double? = null)
data class Address(var streetName: String? = null, var pinCode: String? = null)

Person().apply {
    name = "PERSON NAME"
    sex = "MALE"
    address = Address().apply {
        streetName = "STREET NAME"
        pinCode = "560029"
    }
    lat = 12.9271241
    lng = 77.6110964
}