docs: def find_tags(self):
          """Find information about the tags in the repository."""
          listing = self.context.capture('hg', 'tags')
          for line in listing.splitlines():
              tokens = line.split()
              if len(tokens) >= 2 and ':' in tokens[1]:
                  revision_number, revision_id = tokens[1].split(':')
                  yield Revision(
                      repository=self,
                      revision_id=revision_id,
                      revision_number=int(revision_number),
                      tag=tokens[0],
                  )