How to use the qtawesome.iconic_font.CharIconPainter function in QtAwesome

def __init__(self, *args):
        """IconicFont Constructor.

        Parameters
        ----------
        ``*args``: tuples
            Each positional argument is a tuple of 3 or 4 values:
            - The prefix string to be used when accessing a given font set,
            - The ttf font filename,
            - The json charmap filename,
            - Optionally, the directory containing these files. When not
              provided, the files will be looked for in ``./fonts/``.
        """
        super(IconicFont, self).__init__()
        self.painter = CharIconPainter()
        self.painters = {}
        self.fontname = {}
        self.charmap = {}
        self.icon_cache = {}
        for fargs in args:
            self.load_font(*fargs)

def __init__(self, *args):
        """IconicFont Constructor.

        Parameters
        ----------
        ``*args``: tuples
            Each positional argument is a tuple of 3 or 4 values:
            - The prefix string to be used when accessing a given font set,
            - The ttf font filename,
            - The json charmap filename,
            - Optionally, the directory containing these files. When not
              provided, the files will be looked for in ``./fonts/``.
        """
        super(IconicFont, self).__init__()
        self.painter = CharIconPainter()
        self.painters = {}
        self.fontname = {}
        self.charmap = {}
        self.icon_cache = {}
        for fargs in args:
            self.load_font(*fargs)