code: def get_vcenter_vm_uuid_by_name(host, user, password, vm_name):
      
      vc = VcenterInterface(host, user, password)
      vmi = VmInterface(vc, vm_name)
      return vmi.get_instance_uuid()
docs: Log into vCenter API search for a vm by name, and return it's uuid
      :param host:
      :param user:
      :param password:
      :param vm_name:
      :return: