Definition of "multi-source" item.

Item Summary
Name	Type	Multiplicity	Description
name	property QName	[0,1]	Name of this identity item.
selection	container ObjectTemplateMappingType	[0,1]	A mapping that takes existing identity data and provides a value for the target item.

Items
- name
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Name of this identity item. By default, the last segment of the item path is considered to be the item name.
- selection
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  A mapping that takes existing identity data and provides a value for the target item. It has a default strength of `strong`, and a default sources of `identities/identity` and `identities/defaultAuthoritativeSource`.