3.16 SegmentType
The SegmentType is used in several places as a generic holder of named values ("properties"), organized in named groups ("segments"). 
Tag Name & type | # | Description | 
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| SegmentType |     | Represents a group of values. In most cases, an element of this type can occur more than once in order to represent multiple named groups. |  
|     | @name xs:string | 0-1 | The name of the group or segment. If name is omitted, the group is assumed to refer to a common default set of values, usually named "USER". |  
|     | Property | 1- | An individual value. In some contexts, the actual content of this element is not important, but the name indicates a desired value. Otherwise, the content of this element is value of the Property. |  
|     | @name xs:string | 1 | The name of the value. |  
|     | @b64charset xs:string | 0-1 | The value may be base64 encoded to convey data in a particular character set.  See EncodableStringType. |  
 
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