def METHOD_NAME(self, index):
    """
    Retrieves the oprational status of power supply unit (PSU) defined
            by index <index>
    :param index: An integer, index of the PSU of which to query status
    :return: Boolean, True if PSU is operating properly, False if PSU is\
    faulty
    """
    status = False
    attr_filename = self.get_attr_filename(index, 'input')
    if attr_filename == '':
        return status
    attr_path = self.HWMON_PATH + attr_filename
    attr_value = self.get_attr_value(attr_path)
    if (attr_value != 'ERR'):
        attr_value = float(attr_value)
        # Check PSU status
        if (attr_value != 0.0):
            status = True
    return status