@JsonClass(generateAdapter = true)
data class Candidate(@Json(name = "similarity") val similarity: Double, @Json(name = "person_id") val personId: String, @Json(name = "descriptor_id") val descriptorId: String, @Json(name = "user_data") val userData: String?, @Json(name = "external_id") val externalId: String?)Model of the person being compared.