docs: def dump_links(self, o):
          """Dump links."""
          params = {'versionId': o.version_id}
          data = {
              'self': url_for(
                  '.object_api',
                  bucket_id=o.bucket_id,
                  key=o.key,
                  _external=True,
                  **(params if not o.is_head or o.deleted else {})
              ),
              'version': url_for(
                  '.object_api',
                  bucket_id=o.bucket_id,
                  key=o.key,
                  _external=True,
                  **params
              )
          }
  
          if o.is_head and not o.deleted:
              data.update({'uploads': url_for(
                  '.object_api',
                  bucket_id=o.bucket_id,
                  key=o.key,
                  _external=True
              ) + '?uploads', })
  
          return data