An Interface is an abstract type that includes a certain set of fields that a type must include to implement the interface.
NodeInterface is the base for all types.
Guideline Id.
Guideline name.
Guideline color.
Guideline internal url.
The default language of the Guideline, or null if not set.
Languages in which the Guideline is available.
Paginated list of LibraryPage items for Guideline.
A list of GuidelinePages that belong to this Guideline
Paginated navigation items for Guideline. The language argument must be set at the
highest applicable level within the query (e.g. on brand.guidelines); when omitted here,
the language already set upstream is reused.