Error: resource_pool_id is unsupported argument

Terraform
1

I’m trying to create virtual machines on VMware vSphere through Terraform. With following script, terraform init works well but the error occurs when I executed terraform apply.

data "vsphere_resource_pool" "pool" {
  name          = "Resources"
  datacenter_id = "${data.vsphere_datacenter.dc.id}"
}

data "vsphere_virtual_machine" "template" {
  name = "/${var.vsphere-datacenter}/myfolder/${var.vsphere-template-folder}/${var.vm-template-name}"
  resource_pool_id = data.vsphere_resource_pool.pool.id
  datacenter_id = data.vsphere_datacenter.dc.id
}

Error: Unsupported argument

  on main.tf line 41, in data "vsphere_virtual_machine" "template":
  41:   resource_pool_id = "${data.vsphere_resource_pool.pool.id}"

An argument named "resource_pool_id" is not expected here.

What is the problem? This is my entire Terraform script.

# =================== #
# Deploying VMware VM #
# =================== #
# Connect to VMware vSphere vCenter
provider "vsphere" {
  user = var.vsphere-user
  password = var.vsphere-password
  vsphere_server = var.vsphere-vcenter
  
  # If you have a self-signed cert
  allow_unverified_ssl = var.vsphere-unverified-ssl
}

# Define VMware vSphere
data "vsphere_datacenter" "dc" {
  name = var.vsphere-datacenter
}

data "vsphere_datastore" "datastore" {
  name = var.vm-datastore
  datacenter_id = data.vsphere_datacenter.dc.id
}

data "vsphere_resource_pool" "pool" {
  name          = "Resources"
  datacenter_id = "${data.vsphere_datacenter.dc.id}"
}

# (I don't use any clusters)
# data "vsphere_compute_cluster" "cluster" {
#   name = var.vsphere-cluster
#   datacenter_id = data.vsphere_datacenter.dc.id
# }

data "vsphere_network" "network" {
  name = var.vm-network
  datacenter_id = data.vsphere_datacenter.dc.id
}

data "vsphere_virtual_machine" "template" {
  name = "/${var.vsphere-datacenter}/myfolder/${var.vsphere-template-folder}/${var.vm-template-name}"
  resource_pool_id = data.vsphere_resource_pool.pool.id
  datacenter_id = data.vsphere_datacenter.dc.id
}

# Create VMs
resource "vsphere_virtual_machine" "vm" {
  count = var.vm-count
  name = "${var.vm-name}-${count.index + 1}"
  resource_pool_id = data.vsphere_virtual_machine.template.resource_pool_id
  datastore_id = data.vsphere_datastore.datastore.id
  num_cpus = var.vm-cpu
  memory = var.vm-ram
  guest_id = var.vm-guest-id

  network_interface {
    network_id = data.vsphere_network.network.id
  }

  disk {
    label = "${var.vm-name}-${count.index + 1}-disk"
    size  = 25
  }

  clone {
    template_uuid = data.vsphere_virtual_machine.template.id
    customize {
      timeout = 0
    
      linux_options {
        host_name = "node-${count.index + 1}"
        domain = var.vm-domain
      }
    
      network_interface {}
    }
  }
}