docs: def put_vmss(access_token, subscription_id, resource_group, vmss_name, vmss_body):
      '''Put VMSS body.
  
      Can be used to create or update a scale set.
      E.g. call get_vmss(), make changes to the body, call put_vmss().
  
      Args:
          access_token (str): A valid Azure authentication token.
          subscription_id (str): Azure subscription id.
          resource_group (str): Azure resource group name.
          vmss_name (str): Name of the new scale set.
          vmss_body (dictionary): Body containining 
  
      Returns:
          HTTP response. JSON body of the virtual machine scale set properties.
      '''
      endpoint = ''.join([get_rm_endpoint(),
                          '/subscriptions/', subscription_id,
                          '/resourceGroups/', resource_group,
                          '/providers/Microsoft.Compute/virtualMachineScaleSets/', vmss_name,
                          '?api-version=', COMP_API])
      body = json.dumps(vmss_body)
      return do_put(endpoint, body, access_token)