data class ConferenceDataModel(
        val events: Map<String, EventModel>
)

data class EventModel(
        val name: String,
        val description: String,
        val duration: String,
        val isGeneralEvent: Boolean,
        val isPublished: Boolean,
        val startTime: Date,
        val updatedAt: Long,
        val roomIds: Map<String, RoomModel>,
        val speakerIds: Map<String, SpeakerModel>?,
        val trackId: String?,
        var roomNames: List<String>?,
        var speakerNames: List<String>?,
        var trackName: String?
)