code: def enrich_fields(cls, fields, eitem):
          
  
          for field in fields:
              if field.startswith('customfield_'):
                  if type(fields[field]) is dict:
                      if 'name' in fields[field]:
                          if fields[field]['name'] == "Story Points":
                              eitem['story_points'] = fields[field]['value']
                          elif fields[field]['name'] == "Sprint":
                              value = fields[field]['value']
                              if value:
                                  sprint = value[0].partition(",name=")[2].split(',')[0]
                                  sprint_start = value[0].partition(",startDate=")[2].split(',')[0]
                                  sprint_end = value[0].partition(",endDate=")[2].split(',')[0]
                                  sprint_complete = value[0].partition(",completeDate=")[2].split(',')[0]
                                  eitem['sprint'] = sprint
                                  eitem['sprint_start'] = cls.fix_value_null(sprint_start)
                                  eitem['sprint_end'] = cls.fix_value_null(sprint_end)
                                  eitem['sprint_complete'] = cls.fix_value_null(sprint_complete)
docs: Enrich the fields property of an issue.
  
          Loops through al properties in issue['fields'],
          using those that are relevant to enrich eitem with new properties.
          Those properties are user defined, depending on options
          configured in Jira. For example, if SCRUM is activated,
          we have a field named "Story Points".
  
          :param fields: fields property of an issue
          :param eitem: enriched item, which will be modified adding more properties