docs: def get_fun(fun):
      '''
      Return a dict of the last function called for all minions
      '''
      with _get_serv(ret=None, commit=True) as cur:
  
          sql = '''SELECT s.id,s.jid, s.full_ret
                  FROM salt_returns s
                  JOIN ( SELECT MAX(`jid`) as jid
                      from salt_returns GROUP BY fun, id) max
                  ON s.jid = max.jid
                  WHERE s.fun = %s
                  '''
  
          cur.execute(sql, (fun,))
          data = cur.fetchall()
  
          ret = {}
          if data:
              for minion, _, full_ret in data:
                  ret[minion] = full_ret
          return ret