vsphere_guest with yaml dictionary and variables

gistfile1.yml

- name: adjust vm hardware settings
  connection: local
  hosts:
    - all:!virtual_cluster_ip*
  user: root
  serial: 1
  gather_facts: False
  tasks:
    - vsphere_guest:
        vcenter_hostname: 192.168.200.200
        username: username
        password: password
        guest: "{{ fqdn }}"
        state: reconfigured
        vm_extra_config:
          vcpu.hotadd: yes
          mem.hotadd:  yes
          notes: This is a test VM
        vm_hardware:
          memory_mb: "{{ vm_memory }}"
          num_cpus: "{{ vm_cpus }}"
          osid: Ubuntu Linux (64-bit)
          scsi: paravirtual
        esxi:
          datacenter: some_data
          hostname: some.host
        force: yes