====== Header (DED) ======

Specifies metadata about the definition file.

Use of the Header block is optional. 

===== Syntax =====
  
  Header { Version = 6 }

===== About DED versions =====

In DED version 5, there must be a semicolon after each statement, including blocks inside definition blocks. In version 6, semicolons are optional. In the same way, in version 6, the header block is optional. If you don't include a version declaration, version 6 is assumed.