docs: def search_observations(self, search):
          """
          Search for :class:`meteorpi_model.Observation` entities
  
          :param search:
              an instance of :class:`meteorpi_model.ObservationSearch` used to constrain the observations returned from
              the DB
          :return:
              a structure of {count:int total rows of an unrestricted search, observations:list of
              :class:`meteorpi_model.Observation`}
          """
          b = search_observations_sql_builder(search)
          sql = b.get_select_sql(columns='l.publicId AS obstory_id, l.name AS obstory_name, '
                                         'o.obsTime, s.name AS obsType, o.publicId, o.uid',
                                 skip=search.skip,
                                 limit=search.limit,
                                 order='o.obsTime DESC')
          obs = list(self.generators.observation_generator(sql=sql, sql_args=b.sql_args))
          rows_returned = len(obs)
          total_rows = rows_returned + search.skip
          if (rows_returned == search.limit > 0) or (rows_returned == 0 and search.skip > 0):
              self.con.execute(b.get_count_sql(), b.sql_args)
              total_rows = self.con.fetchone()['COUNT(*)']
          return {"count": total_rows,
                  "obs": obs}