code: def get_prefetch_for_section_data(section_data):
      
      prefetch = []
      for meeting_data in section_data["Meetings"]:
          for instructor_data in meeting_data["Instructors"]:
              pdata = instructor_data["Person"]
              if "RegID" in pdata and pdata["RegID"] is not None:
                  prefetch.append(["person-{}".format(pdata["RegID"]),
                                   generic_prefetch(UWPWS.get_person_by_regid,
                                                    [pdata["RegID"]])])
  
      return prefetch
docs: This will return a list of methods that can be called to prefetch (in
      threads) content that would be fetched while building the section.
  
      This depends on a good cache backend.  Without that, this will just double
      the work that's needed :(
  
      Each method is identified by a key, so they can be deduped if multiple
      sections want the same data, such as a common instructor.