code: def minutes_for_sessions_in_range(self,
                                        start_session_label,
                                        end_session_label):
          
          first_minute, _ = self.open_and_close_for_session(start_session_label)
          _, last_minute = self.open_and_close_for_session(end_session_label)
  
          return self.minutes_in_range(first_minute, last_minute)
docs: Returns all the minutes for all the sessions from the given start
          session label to the given end session label, inclusive.
  
          Parameters
          ----------
          start_session_label: pd.Timestamp
              The label of the first session in the range.
  
          end_session_label: pd.Timestamp
              The label of the last session in the range.
  
          Returns
          -------
          pd.DatetimeIndex
              The minutes in the desired range.