func(recommended)Indicates the function of the text.
Allowed values are:
"unknown" (The function of the text is unknown.)
startid(optional)Holds a reference to the first element in a sequence of events to which the feature
applies.
Value conforms to data.URI.
Component declarations that are shared between two or more modules.
startid(optional)Holds a reference to the first element in a sequence of events to which the feature
applies.
Value conforms to data.URI.
User-defined symbols component declarations.
func(recommended)Indicates the function of the text.
Allowed values are:
"unknown" (The function of the text is unknown.)