How to use the sparkmagic.utils.constants function in sparkmagic

def emit_cluster_change_event(self, cluster_dns_name, status_code, success, error_message):
        event_name = constants.CLUSTER_CHANGE_EVENT
        time_stamp = self.get_utc_date_time()

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.CLUSTER_DNS_NAME, cluster_dns_name),
                       (constants.STATUS_CODE, status_code),
                       (constants.SUCCESS, success),
                       (constants.ERROR_MESSAGE, error_message)]

        self.send_to_handler(kwargs_list)

def emit_magic_execution_end_event(self, magic_name, language, magic_guid,
                                       success, exception_type, exception_message):
        self._verify_language_ok(language)
        time_stamp = self.get_utc_date_time()

        event_name = constants.MAGIC_EXECUTION_END_EVENT

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.MAGIC_NAME, magic_name),
                       (constants.LIVY_KIND, language),
                       (constants.MAGIC_GUID, magic_guid),
                       (constants.SUCCESS, success),
                       (constants.EXCEPTION_TYPE, exception_type),
                       (constants.EXCEPTION_MESSAGE, exception_message)]

        self.send_to_handler(kwargs_list)

def to_command(self, kind, sql_context_variable_name):
        if kind == constants.SESSION_KIND_PYSPARK:
            return self._pyspark_command(sql_context_variable_name)
        elif kind == constants.SESSION_KIND_PYSPARK3:
            return self._pyspark_command(sql_context_variable_name, False)
        elif kind == constants.SESSION_KIND_SPARK:
            return self._scala_command(sql_context_variable_name)
        elif kind == constants.SESSION_KIND_SPARKR:
            return self._r_command(sql_context_variable_name)
        else:
            raise BadUserDataException(u"Kind '{}' is not supported.".format(kind))

def emit_magic_execution_end_event(self, magic_name, language, magic_guid,
                                       success, exception_type, exception_message):
        self._verify_language_ok(language)
        time_stamp = self.get_utc_date_time()

        event_name = constants.MAGIC_EXECUTION_END_EVENT

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.MAGIC_NAME, magic_name),
                       (constants.LIVY_KIND, language),
                       (constants.MAGIC_GUID, magic_guid),
                       (constants.SUCCESS, success),
                       (constants.EXCEPTION_TYPE, exception_type),
                       (constants.EXCEPTION_MESSAGE, exception_message)]

        self.send_to_handler(kwargs_list)

def emit_magic_execution_end_event(self, magic_name, language, magic_guid,
                                       success, exception_type, exception_message):
        self._verify_language_ok(language)
        time_stamp = self.get_utc_date_time()

        event_name = constants.MAGIC_EXECUTION_END_EVENT

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.MAGIC_NAME, magic_name),
                       (constants.LIVY_KIND, language),
                       (constants.MAGIC_GUID, magic_guid),
                       (constants.SUCCESS, success),
                       (constants.EXCEPTION_TYPE, exception_type),
                       (constants.EXCEPTION_MESSAGE, exception_message)]

        self.send_to_handler(kwargs_list)

def emit_sql_execution_end_event(self, session_guid, language, session_id, sql_guid, statement_guid,
                                     success, exception_type, exception_message):
        self._verify_language_ok(language)

        event_name = constants.SQL_EXECUTION_END_EVENT
        time_stamp = self.get_utc_date_time()

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.SESSION_GUID, session_guid),
                       (constants.LIVY_KIND, language),
                       (constants.SESSION_ID, session_id),
                       (constants.SQL_GUID, sql_guid),
                       (constants.STATEMENT_GUID, statement_guid),
                       (constants.SUCCESS, success),
                       (constants.EXCEPTION_TYPE, exception_type),
                       (constants.EXCEPTION_MESSAGE, exception_message)]

        self.send_to_handler(kwargs_list)

def emit_sql_execution_end_event(self, session_guid, language, session_id, sql_guid, statement_guid,
                                     success, exception_type, exception_message):
        self._verify_language_ok(language)

        event_name = constants.SQL_EXECUTION_END_EVENT
        time_stamp = self.get_utc_date_time()

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.SESSION_GUID, session_guid),
                       (constants.LIVY_KIND, language),
                       (constants.SESSION_ID, session_id),
                       (constants.SQL_GUID, sql_guid),
                       (constants.STATEMENT_GUID, statement_guid),
                       (constants.SUCCESS, success),
                       (constants.EXCEPTION_TYPE, exception_type),
                       (constants.EXCEPTION_MESSAGE, exception_message)]

        self.send_to_handler(kwargs_list)

def emit_sql_execution_start_event(self, session_guid, language, session_id, sql_guid,
                                       samplemethod, maxrows, samplefraction):
        self._verify_language_ok(language)

        event_name = constants.SQL_EXECUTION_START_EVENT
        time_stamp = self.get_utc_date_time()

        kwargs_list = [(EVENT_NAME, event_name),
                       (TIMESTAMP, time_stamp),
                       (constants.SESSION_GUID, session_guid),
                       (constants.LIVY_KIND, language),
                       (constants.SESSION_ID, session_id),
                       (constants.SQL_GUID, sql_guid),
                       (constants.SAMPLE_METHOD, samplemethod),
                       (constants.MAX_ROWS, maxrows),
                       (constants.SAMPLE_FRACTION, samplefraction)]

        self.send_to_handler(kwargs_list)