How to use the sparkmagic.utils.sparkevents.SparkEvents function in sparkmagic

def _get_spark_events(self):
        spark_events = getattr(self, 'spark_events', None)
        if spark_events is None:
            return SparkEvents()
        return spark_events

if samplefraction is None:
            samplefraction = conf.default_samplefraction()

        if samplemethod not in {u'take', u'sample'}:
            raise BadUserDataException(u'samplemethod (-m) must be one of (take, sample)')
        if not isinstance(maxrows, int):
            raise BadUserDataException(u'maxrows (-n) must be an integer')
        if not 0.0 <= samplefraction <= 1.0:
            raise BadUserDataException(u'samplefraction (-r) must be a float between 0.0 and 1.0')

        self.query = query
        self.samplemethod = samplemethod
        self.maxrows = maxrows
        self.samplefraction = samplefraction
        if spark_events is None:
            spark_events = SparkEvents()
        self._spark_events = spark_events

if samplefraction is None:
            samplefraction = conf.default_samplefraction()

        if samplemethod not in {u'take', u'sample'}:
            raise BadUserDataException(u'samplemethod (-m) must be one of (take, sample)')
        if not isinstance(maxrows, int):
            raise BadUserDataException(u'maxrows (-n) must be an integer')
        if not 0.0 <= samplefraction <= 1.0:
            raise BadUserDataException(u'samplefraction (-r) must be a float between 0.0 and 1.0')

        self.query = query
        self.samplemethod = samplemethod
        self.maxrows = maxrows
        self.samplefraction = samplefraction
        if spark_events is None:
            spark_events = SparkEvents()
        self._spark_events = spark_events
        self._coerce = coerce

def __init__(self, code, spark_events=None):
        super(Command, self).__init__()
        self.code = textwrap.dedent(code)
        self.logger = SparkLog(u"Command")
        if spark_events is None:
            spark_events = SparkEvents()
        self._spark_events = spark_events

def __init__(self, shell, data=None, spark_events=None):
        # You must call the parent constructor
        super(SparkMagicBase, self).__init__(shell)

        self.logger = SparkLog(u"SparkMagics")
        self.ipython_display = IpythonDisplay()
        self.spark_controller = SparkController(self.ipython_display)

        self.logger.debug("Initialized spark magics.")

        if spark_events is None:
            spark_events = SparkEvents()
        spark_events.emit_library_loaded_event()

if samplefraction is None:
            samplefraction = conf.default_samplefraction()

        if samplemethod not in {u'take', u'sample'}:
            raise BadUserDataException(u'samplemethod (-m) must be one of (take, sample)')
        if not isinstance(maxrows, int):
            raise BadUserDataException(u'maxrows (-n) must be an integer')
        if not 0.0 <= samplefraction <= 1.0:
            raise BadUserDataException(u'samplefraction (-r) must be a float between 0.0 and 1.0')

        self.samplemethod = samplemethod
        self.maxrows = maxrows
        self.samplefraction = samplefraction
        self.output_var = output_var
        if spark_events is None:
            spark_events = SparkEvents()
        self._spark_events = spark_events
        self._coerce = coerce