How to use the sty.primitive.Register function in sty

def unmute(*objects: Register) -> None:
    """
    Use this function to unmute multiple register-objects at once.

    :param objects: Pass multiple register-objects to the function.
    """
    err = ValueError(
        "The unmute() method can only be used with objects that inherit "\
        "from the 'Register class'."
    )
    for obj in objects:
        if not isinstance(obj, Register):
            raise err
        obj.unmute()

self.li_magenta = Style(Sgr(95))
        self.li_cyan = Style(Sgr(96))
        self.li_white = Style(Sgr(97))

        # These are less supported.
        self.da_black = Style(EightbitFg(0))
        self.da_red = Style(EightbitFg(88))
        self.da_green = Style(EightbitFg(22))
        self.da_yellow = Style(EightbitFg(58))
        self.da_blue = Style(EightbitFg(18))
        self.da_magenta = Style(EightbitFg(89))
        self.da_cyan = Style(EightbitFg(23))
        self.da_white = Style(EightbitFg(249))


class BgRegister(Register):

    def __init__(self):

        super().__init__()

        self.renderfuncs[Sgr] = renderfunc.sgr
        self.renderfuncs[EightbitBg] = renderfunc.eightbit_bg
        self.renderfuncs[RgbBg] = renderfunc.rgb_bg

        self.set_eightbit_call(EightbitBg)
        self.set_rgb_call(RgbBg)

        # Classic terminal background color preset.
        # These are well supported.
        self.black = Style(Sgr(40))
        self.red = Style(Sgr(41))

self.li_magenta = Style(Sgr(105))
        self.li_cyan = Style(Sgr(106))
        self.li_white = Style(Sgr(107))

        # These are less supported.
        self.da_black = Style(EightbitBg(0))
        self.da_red = Style(EightbitBg(88))
        self.da_green = Style(EightbitBg(22))
        self.da_yellow = Style(EightbitBg(58))
        self.da_blue = Style(EightbitBg(18))
        self.da_magenta = Style(EightbitBg(89))
        self.da_cyan = Style(EightbitBg(23))
        self.da_white = Style(EightbitBg(249))


class RsRegister(Register):

    def __init__(self):

        super().__init__()

        self.renderfuncs[Sgr] = renderfunc.sgr

        self.all = Style(Sgr(0))
        self.fg = Style(Sgr(39))
        self.bg = Style(Sgr(49))

        self.bold_dim = Style(Sgr(22))
        self.dim_bold = Style(Sgr(22))
        self.i = Style(Sgr(23))
        self.italic = Style(Sgr(23))
        self.u = Style(Sgr(24))

"""
These are the default registers that sty provides out of the box.
"""
from . import renderfunc
from .primitive import Register, Style
from .rendertype import *


class EfRegister(Register):

    def __init__(self):

        super().__init__()

        self.renderfuncs[Sgr] = renderfunc.sgr

        self.b = Style(Sgr(1))
        self.bold = Style(Sgr(1))
        self.dim = Style(Sgr(2))
        self.i = Style(Sgr(3))
        self.italic = Style(Sgr(3))
        self.u = Style(Sgr(4))
        self.underl = Style(Sgr(4))
        self.blink = Style(Sgr(5))
        self.inverse = Style(Sgr(7))

self.renderfuncs[Sgr] = renderfunc.sgr

        self.b = Style(Sgr(1))
        self.bold = Style(Sgr(1))
        self.dim = Style(Sgr(2))
        self.i = Style(Sgr(3))
        self.italic = Style(Sgr(3))
        self.u = Style(Sgr(4))
        self.underl = Style(Sgr(4))
        self.blink = Style(Sgr(5))
        self.inverse = Style(Sgr(7))
        self.hidden = Style(Sgr(8))
        self.strike = Style(Sgr(9))


class FgRegister(Register):

    def __init__(self):

        super().__init__()

        self.renderfuncs[Sgr] = renderfunc.sgr
        self.renderfuncs[EightbitFg] = renderfunc.eightbit_fg
        self.renderfuncs[RgbFg] = renderfunc.rgb_fg

        self.set_eightbit_call(EightbitFg)
        self.set_rgb_call(RgbFg)

        # Classic terminal foreground color preset.
        # These are well supported.
        self.black = Style(Sgr(30))
        self.red = Style(Sgr(31))

def mute(*objects: Register) -> None:
    """
    Use this function to mute multiple register-objects at once.

    :param objects: Pass multiple register-objects to the function.
    """
    err = ValueError(
        "The mute() method can only be used with objects that inherit "\
        "from the 'Register class'."
    )
    for obj in objects:
        if not isinstance(obj, Register):
            raise err
        obj.mute()