<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def sessions_in_range(self, start_session_label, end_session_label):
 """ Given start and end session labels, return all the sessions in that range, inclusive. Parameters start_session_label: pd.Timestamp (midnight UTC) The label representing the first session of the desired range. end_session_label: pd.Timestamp (midnight UTC) The label representing the last session of the desired range. Returns ------- pd.DatetimeIndex The desired sessions. """

        return self.all_sessions[
            self.all_sessions.slice_indexer(
                start_session_label,
                end_session_label
            )
        ]