The qualified name of the attribute to match, including any namespace prefix. For example role,
aria-hidden or epub:type.
Matching is literal, so xml:lang and lang are separate names.
OptionalvaluesThe attribute values that cause exclusion. A value matches only when it is identical to the whole attribute
value, including case and any surrounding whitespace, so presentation does not match
role="none presentation".
Omit this property to exclude a content block whenever the attribute is present, whatever its value. An empty list never matches.
An attribute name, and optionally the attribute values, that cause a content block to be excluded from a TTS SyncMediaTimeline.