Sets the parser subclass's tags and how they should be merged with any
upstream stream tags. This will override any tags previously-set
with BaseParse.mergeTags.
Note that this is provided for convenience, and the subclass is
not required to use this and can still do tag handling on its own.
Sets the parser subclass's tags and how they should be merged with any upstream stream tags. This will override any tags previously-set with BaseParse.mergeTags.
Note that this is provided for convenience, and the subclass is not required to use this and can still do tag handling on its own.