docs: def init_tag_processors(self):
          '''Register the TagProcessors that are bundled with doxytag2zealdb.'''
          register = self.register_tag_processor
  
          register('class', classTagProcessor(**self.opts))
          register('file', fileTagProcessor(**self.opts))
          register('namespace', namespaceTagProcessor(**self.opts))
          register('struct', structTagProcessor(**self.opts))
          register('union', unionTagProcessor(**self.opts))
          register('function', functionTagProcessor(**self.opts))
          register('define', defineTagProcessor(**self.opts))
          register('enumeration', enumerationTagProcessor(**self.opts))
          register('enumvalue', enumvalueTagProcessor(**self.opts))
          register('typedef', typedefTagProcessor(**self.opts))
          register('variable', variableTagProcessor(**self.opts))