An enumeration of the types of developer metadata visibility.
To call an enum, you call its parent class, name, and property. For example,
|Document-visible metadata is accessible from any developer project with access to the document.|
|Project-visible metadata is only visible to and accessible by the developer project that created the metadata. Do not use project-visible developer metadata as a security mechanism or to store secrets. It can be exposed to users with view access to the document.|