Optional Readonlydefault_Optional ReadonlyidAn optional unique identifier for the descriptor.
Optional ReadonlyproOptional ReadonlypsshReadonlyschemeThe URI identifying the scheme or namespace of the descriptor.
Optional ReadonlyvalueAn optional value associated with the descriptor, whose interpretation depends on the scheme.
A generic descriptor type that defines additional information about a content or component, specified by an ID, a scheme, and an optional value.