Campaign
constructor(id: String, name: String, type: CampaignType, status: CampaignStatus, channelId: String?, messageContent: String?, templateName: String?, templateId: String?, targetTagId: String?, targetGroupId: String?, scheduledTo: LocalDateTime?, sentAt: LocalDateTime?, totalRecipients: Int, deliveredCount: Int, failedCount: Int, readCount: Int, repliedCount: Int, createdAt: LocalDateTime)(source)