docs: def eventize(self, granularity):
          """ This splits the JSON information found at self.events into the
          several events. For this there are three different levels of time
          consuming actions: 1-soft, 2-medium and 3-hard.
  
          Level 1 provides events about open and closed issues.
          Level 2 provides events about the rest of the status updates.
          Level 3 provides events about the rest of the values in any of the
          fields.
  
          :param granularity: Levels of time consuming actions to calculate events
          :type granularity: integer
  
          :returns: Pandas dataframe with splitted events.
          :rtype: pandas.DataFrame
          """
  
          issue = {}
          issue[Bugzilla.ISSUE_ID] = []
          issue[Bugzilla.ISSUE_EVENT] = []
          issue[Bugzilla.ISSUE_DATE] = []
          issue[Bugzilla.ISSUE_OWNER] = []
  
          events = pandas.DataFrame()
  
          for item in self.items:
              bug_data = item["data"]
              if granularity == 1:
                  # Open Date: filling a new event
                  issue[Bugzilla.ISSUE_ID].append(bug_data['bug_id'][0]['__text__'])
                  issue[Bugzilla.ISSUE_EVENT].append(Bugzilla.EVENT_OPEN)
                  issue[Bugzilla.ISSUE_DATE].append(str_to_datetime(bug_data['creation_ts'][0]['__text__']))
                  issue[Bugzilla.ISSUE_OWNER].append(bug_data['reporter'][0]["__text__"])
  
                  # Adding the rest of the status updates (if there were any)
                  if 'activity' in bug_data.keys():
                      activity = bug_data["activity"]
                      for change in activity:
                          # if change["What"] == "Status":
                          # Filling a new event
                          issue[Bugzilla.ISSUE_ID].append(bug_data['bug_id'][0]['__text__'])
                          issue[Bugzilla.ISSUE_EVENT].append("ISSUE_" + change["Added"])
                          issue[Bugzilla.ISSUE_DATE].append(str_to_datetime(change["When"]))
                          issue[Bugzilla.ISSUE_OWNER].append(change["Who"])
  
              if granularity == 2:
                  # TBD Let's produce an index with all of the changes.
                  #    Let's have in mind the point about having the changes of initiating
                  #    the ticket.
                  pass
  
              if granularity == 3:
                  # TDB
                  pass
  
          # Done in this way to have an order (and not a direct cast)
          events[Bugzilla.ISSUE_ID] = issue[Bugzilla.ISSUE_ID]
          events[Bugzilla.ISSUE_EVENT] = issue[Bugzilla.ISSUE_EVENT]
          events[Bugzilla.ISSUE_DATE] = issue[Bugzilla.ISSUE_DATE]
          events[Bugzilla.ISSUE_OWNER] = issue[Bugzilla.ISSUE_OWNER]
  
          return events