Type Alias Metadata 

pub type Metadata = Map<String, Value>;

Structured metadata attached to a memory (the ColumnStore facet): exact-match fields like project, author, type, status, date. content and _veles_expires_at are reserved keys. crate::storage::AUTO_DATE_FIELD (_veles_date) is auto-populated by MemoryService::remember_with_ttl with today’s date unless already present — see that method’s docs.

Aliased Type

pub struct Metadata { /* private fields */ }