How to use the pysma.Sensors function in pysma

def _check_sensor_schema(conf):
    """Check sensors and attributes are valid."""
    try:
        valid = [s.name for s in pysma.Sensors()]
    except (ImportError, AttributeError):
        return conf

    customs = list(conf[CONF_CUSTOM].keys())

    for sensor in conf[CONF_SENSORS]:
        if sensor in customs:
            _LOGGER.warning(
                "All custom sensors will be added automatically, no need to include them in sensors: %s",
                sensor,
            )
        elif sensor not in valid:
            raise vol.Invalid(f"{sensor} does not exist")
    return conf

def _check_sensor_schema(conf):
    """Check sensors and attributes are valid."""
    try:
        import pysma
        valid = [s.name for s in pysma.Sensors()]
    except (ImportError, AttributeError):
        return conf

    for name in conf[CONF_CUSTOM]:
        valid.append(name)

    for sname, attrs in conf[CONF_SENSORS].items():
        if sname not in valid:
            raise vol.Invalid("{} does not exist".format(sname))
        for attr in attrs:
            if attr in valid:
                continue
            raise vol.Invalid("{} does not exist [{}]".format(attr, sname))
    return conf

async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
    """Set up SMA WebConnect sensor."""

    # Check config again during load - dependency available
    config = _check_sensor_schema(config)

    # Init all default sensors
    sensor_def = pysma.Sensors()

    # Sensor from the custom config
    sensor_def.add(
        [
            pysma.Sensor(o[CONF_KEY], n, o[CONF_UNIT], o[CONF_FACTOR], o.get(CONF_PATH))
            for n, o in config[CONF_CUSTOM].items()
        ]
    )

    # Use all sensors by default
    config_sensors = config[CONF_SENSORS]
    hass_sensors = []
    used_sensors = []

    if isinstance(config_sensors, dict):  # will be remove from 0.99
        if not config_sensors:  # Use all sensors by default

async def async_setup_platform(
        hass, config, async_add_entities, discovery_info=None):
    """Set up SMA WebConnect sensor."""
    import pysma

    # Check config again during load - dependency available
    config = _check_sensor_schema(config)

    # Init all default sensors
    sensor_def = pysma.Sensors()

    # Sensor from the custom config
    sensor_def.add([pysma.Sensor(o[CONF_KEY], n, o[CONF_UNIT], o[CONF_FACTOR])
                    for n, o in config[CONF_CUSTOM].items()])

    # Use all sensors by default
    config_sensors = config[CONF_SENSORS]
    if not config_sensors:
        config_sensors = {s.name: [] for s in sensor_def}

    # Prepare all HASS sensor entities
    hass_sensors = []
    used_sensors = []
    for name, attr in config_sensors.items():
        sub_sensors = [sensor_def[s] for s in attr]
        hass_sensors.append(SMAsensor(sensor_def[name], sub_sensors))