How to use the nikola.utils.LOGGER function in Nikola

def __init__(self):
        plugin_path = os.path.dirname(os.path.realpath(__file__))
        base_path = plugin_path.split("plugins")[0]
        LOGGER.info(f"!!!!!!!!!!!!!!!!base path = {base_path}")
        sys.path.insert(0, os.path.join(base_path, "../"))

def gen_tasks(self):
        for in_name in get_entries(os.path.join(base_path, "../examples")):
            name_image = os.path.basename(in_name)
            out_name = "output/gallery/" + name_image

        # in_name = "/home/blackbird/Projects_heavy/pycontextfree/examples/paper/paper.png"
        # out_name = "output/gallery/paper.png"
        # out_name = "gallery/paper.png"
            LOGGER.info(f"emiting copyi task {in_name} to {out_name}")
            yield utils.apply_filters({
                'basename': self.name,
                'name': out_name,
                'file_dep': [in_name],
                'targets': [out_name],
                'actions': [(utils.copy_file, [in_name, out_name])],
                'clean': True,
                }, {})

def read_files(self):
        self.rows = []
        cnt = 0
        for fname in get_entries(os.path.join(base_path, "../examples")):
            LOGGER.info("processing " + fname)
            try:
                # data = load_json(fname)
                data = {}
                data["path"] = fname
                data["path_image"] = fname[:-3] + ".png"
                data["name"] = os.path.basename(os.path.dirname(fname))
                data["url"] = "https://github.com/undertherain/pycontextfree/blob/master/examples/" + data["name"] + "/" + os.path.basename(fname)
                data["id"] = cnt
                name_image = os.path.basename(fname)[:-3] + ".png"

                data["image"] = "/gallery/" + name_image
                cnt += 1
                self.rows.append(data)
            except Exception as e:
                LOGGER.warning("error processing " + fname + str(e))