Any headup on how fix this issue ? ```Caused by: k...

# serialization

[Mohit Sharma]

Any headup on how fix this issue ?

Caused by: kotlinx.serialization.json.internal.JsonDecodingException: Polymorphic serializer was not found for missing class discriminator ('null')
2022-10-25 20:31:56.910 4548-4548/com.socialpillars.ngo E/AndroidRuntime: JSON input: .....te_time":"2022-03-30T06:43:29.433318+05:30","type":"post"}]}

data class Posts(
    @SerialName("uuid") val postId: String,
    @SerialName("description") val description: String,
    @SerialName("likes_count") var likesCount: Int,
    @SerialName("images") private val _images: List<Image>,
    @SerialName("user") val user: User,
    @SerialName("is_liked") var isLiked: Boolean,
    @SerialName("create_time") private val _eventStartTime: String,
    var isMyPost: Boolean = false
)

data class FeedItem(
    @SerialName("post") var posts: Posts?,
    @SerialName("event") var events: Events?,
    @SerialName("type") var type: FeedType
)