Biml Language Reference
DirectResource Element
The AstDirectResourceNode type provides the facility to directly input text data for use in the referencing Biml object.
Collection Children
  Child API Type Description
    <Annotation />
This is a collection of annotation items that can be used to specify documentation, tags, or other information. Annotations are particularly useful for storing information about nodes that can be used by BimlScript code.

[.NET API Property: Annotations]