How to use the glances.plugins.glances_plugin.GlancesPlugin._check_decorator function in Glances

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update quicklook stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        # Grab quicklook stats: CPU, MEM and SWAP
        if self.input_method == 'local':
            # Get the latest CPU percent value
            stats['cpu'] = cpu_percent.get()
            stats['percpu'] = cpu_percent.get(percpu=True)
            # Use the psutil lib for the memory (virtual and swap)
            stats['mem'] = psutil.virtual_memory().percent
            stats['swap'] = psutil.swap_memory().percent
        elif self.input_method == 'snmp':
            # Not available

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update the cloud stats.

        Return the stats (dict)
        """
        # Init new stats
        stats = self.get_init_value()

        # Requests lib is needed to get stats from the Cloud API
        if import_error_tag:
            return stats

        # Update the stats
        if self.input_method == 'local':
            stats = self.OPENSTACK.stats

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update disk I/O stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Update stats using the standard system lib
            # Grab the stat using the psutil disk_io_counters method
            # read_count: number of reads
            # write_count: number of writes
            # read_bytes: number of bytes read
            # write_bytes: number of bytes written
            # read_time: time spent reading from disk (in milliseconds)
            # write_time: time spent writing to disk (in milliseconds)
            try:

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update network stats using the input method.

        Stats is a list of dict (one dict per interface)
        """
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Update stats using the standard system lib

            # Grab network interface stat using the psutil net_io_counter method
            try:
                netiocounters = psutil.net_io_counters(pernic=True)
            except UnicodeDecodeError as e:

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update HDD stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Update stats using the standard system lib
            stats = self.hddtemp.get()

        else:
            # Update stats using SNMP
            # Not available for the moment
            pass

        # Update the stats

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update the FS stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Update stats using the standard system lib

            # Grab the stats using the psutil disk_partitions
            # If 'all'=False return physical devices only (e.g. hard disks, cd-rom drives, USB keys)
            # and ignore all others (e.g. memory partitions such as /dev/shm)
            try:
                fs_stat = psutil.disk_partitions(all=False)
            except (UnicodeDecodeError, PermissionError):
                return self.stats

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update the stats."""
        # Reset stats
        self.reset()

        # Return psutil version as a tuple
        if self.input_method == 'local':
            # psutil version only available in local
            try:
                self.stats = psutil_version_info
            except NameError:
                pass
        else:
            pass

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update swap memory stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Update stats using the standard system lib
            # Grab SWAP using the psutil swap_memory method
            sm_stats = psutil.swap_memory()

            # Get all the swap stats (copy/paste of the psutil documentation)
            # total: total swap memory in bytes
            # used: used swap memory in bytes
            # free: free swap memory in bytes
            # percent: the percentage usage

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update Docker stats using the input method."""
        # Init new stats
        stats = self.get_init_value()

        # The Docker-py lib is mandatory
        if import_error_tag:
            return self.stats

        if self.input_method == 'local':
            # Update stats

            # Docker version
            # Exemple: {
            #     "KernelVersion": "3.16.4-tinycore64",

    @GlancesPlugin._check_decorator
    @GlancesPlugin._log_result_decorator
    def update(self):
        """Update the foldered list."""
        # Init new stats
        stats = self.get_init_value()

        if self.input_method == 'local':
            # Folder list only available in a full Glances environment
            # Check if the glances_folder instance is init
            if self.glances_folders is None:
                return self.stats

            # Update the foldered list (result of command)
            self.glances_folders.update()

            # Put it on the stats var