Meta argumets out put issues

Terraform
1

Hi all. I am using the meta arguments to create the

this is my child module main.tf

variable "project" {
  type = map(any)
  default = {
    relay = {
      instance_type           = "t2.medium",
      instance_name           = "new_server",
      instance_count          = 2
    }
  }
}

module "game" {
  source = "./module/cvm"
  for_each                            = var.project
  instance_count                      = each.value.instance_count
   instance_data_disk_size             = each.value.instance_data_disk_size
  #### Other config 
}

Output.tf in child module

output "instance_id" {
  value = module.game.instance_id
}

this is my root module mnain.tf

resource "tencentcloud_instance" "default" {
instance_type     = var.instance_type
count             = var.instance_count
#### some other config 
}

Output.tf in child module

output "instance_id" {
  value = [for b in tencentcloud_instance.default : b.id ]
}

Here i ma trying create multiple instance with diff type. as of now now i am using only one.
In the above snippet i am getting error like
his object does not have an attribute named “instance_id”. while displaying instance id. can somebody help in this…