docs: def get_size(conn, vm_):
      '''
      Return the VM's size object
      '''
      sizes = conn.list_sizes()
      vm_size = config.get_cloud_config_value('size', vm_, __opts__)
      if not vm_size:
          return sizes[0]
  
      for size in sizes:
          if vm_size and six.text_type(vm_size) in (six.text_type(sizes[size]['id']), six.text_type(size)):
              return sizes[size]['id']
      raise SaltCloudNotFound(
          'The specified size, \'{0}\', could not be found.'.format(vm_size)
      )