def _hex_to_bin(hex_message: str) -> str:
    """
    Converts message from hex to bin

    Args:
        hex_message (str)
    Returns
        bin_message (str)
    """
    bits = len(hex_message[2:]) * 4
    bin_message = bin(int(hex_message, 16))[2:]
    return "0b" + bin_message.zfill(bits)