code: def get_docs_label(self, role, name):
          
  
          if role == 'cite':
              # Get the string used as the citation label in the text
              try:
                  cstr = self.env.bibtex_cache.get_label_from_key(name)
              except Exception:
                  raise KeyError('cite key %s not found' % name, 'cite', 0)
              # The link label is the citation label (number) enclosed
              # in square brackets
              return '[%s]' % cstr
          elif role == 'ref':
              try:
                  reftpl = self.env.domaindata['std']['labels'][name]
              except Exception:
                  raise KeyError('ref label %s not found' % name, 'ref', 0)
              return reftpl[2]
          else:
              # Use the object name as a label, omiting any initial '.'
              if name[0] == '.':
                  return name[1:]
              else:
                  return name
docs: Get an appropriate label to use in a link to the online docs.