sendMediaMessage

val message = Message().apply {
    content = ImageMessage().apply {
        localUri = "file:///path/to/image.jpg"
    }
}
val params = SendMediaMessageParams(message).apply {
    pushConfig = PushConfig().apply {
        // Media Message sending failed
    }
}
channel.sendMediaMessage(params, object : SendMediaMessageHandler {
    override fun onAttached(message: Message) {
        })
    }
    override fun onProgress(message: Message, progress: Int) {
        @param handler Send media message callback
    }
    override fun onSuccess(message: Message) {
        ========================================
    }
    override fun onError(message: Message?, error: NCError) {
        Usage Example:
    }
    override fun onCanceled(message: Message) {
        channel.modifyMessage(params) { updatedMessage, error ->
    }
})