How to use the esphome.codegen.register_component function in esphome

def register_mqtt_component(var, config):
    yield cg.register_component(var, {})

    if CONF_RETAIN in config:
        cg.add(var.set_retain(config[CONF_RETAIN]))
    if not config.get(CONF_DISCOVERY, True):
        cg.add(var.disable_discovery())
    if CONF_STATE_TOPIC in config:
        cg.add(var.set_custom_state_topic(config[CONF_STATE_TOPIC]))
    if CONF_COMMAND_TOPIC in config:
        cg.add(var.set_custom_command_topic(config[CONF_COMMAND_TOPIC]))
    if CONF_AVAILABILITY in config:
        availability = config[CONF_AVAILABILITY]
        if not availability:
            cg.add(var.disable_availability())
        else:
            cg.add(var.set_availability(availability[CONF_TOPIC],
                                        availability[CONF_PAYLOAD_AVAILABLE],

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)

    pin = yield gpio_pin_expression(config[CONF_PIN])
    cg.add(var.set_pin(pin))

    if CONF_TEMPERATURE in config:
        sens = yield sensor.new_sensor(config[CONF_TEMPERATURE])
        cg.add(var.set_temperature_sensor(sens))
    if CONF_HUMIDITY in config:
        sens = yield sensor.new_sensor(config[CONF_HUMIDITY])
        cg.add(var.set_humidity_sensor(sens))

    cg.add(var.set_dht_model(config[CONF_MODEL]))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield esp32_ble_tracker.register_ble_device(var, config)
    yield binary_sensor.register_binary_sensor(var, config)

    if CONF_MAC_ADDRESS in config:
        cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))

    if CONF_SERVICE_UUID in config:
        if len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
            cg.add(var.set_service_uuid16(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID])))
        elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid32_format):
            cg.add(var.set_service_uuid32(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID])))
        elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid128_format):
            uuid128 = esp32_ble_tracker.as_hex_array(config[CONF_SERVICE_UUID])
            cg.add(var.set_service_uuid128(uuid128))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield text_sensor.register_text_sensor(var, config)

    paren = yield cg.get_variable(config[CONF_SUN_ID])
    cg.add(var.set_parent(paren))
    cg.add(var.set_sunrise(SUN_TYPES[config[CONF_TYPE]]))
    cg.add(var.set_elevation(config[CONF_ELEVATION]))
    cg.add(var.set_format(config[CONF_FORMAT]))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield uart.register_uart_device(var, config)

    for conf in config.get(CONF_ON_TAG, []):
        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID])
        cg.add(var.register_trigger(trigger))
        yield automation.build_automation(trigger, [(cg.uint32, 'x')], conf)

time_ = yield cg.get_variable(config[CONF_TIME_ID])
    cg.add(var.set_time(time_))
    cg.add(var.set_latitude(config[CONF_LATITUDE]))
    cg.add(var.set_longitude(config[CONF_LONGITUDE]))

    for conf in config.get(CONF_ON_SUNRISE, []):
        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID])
        yield cg.register_component(trigger, conf)
        yield cg.register_parented(trigger, var)
        cg.add(trigger.set_sunrise(True))
        cg.add(trigger.set_elevation(conf[CONF_ELEVATION]))
        yield automation.build_automation(trigger, [], conf)

    for conf in config.get(CONF_ON_SUNSET, []):
        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID])
        yield cg.register_component(trigger, conf)
        yield cg.register_parented(trigger, var)
        cg.add(trigger.set_sunrise(False))
        cg.add(trigger.set_elevation(conf[CONF_ELEVATION]))
        yield automation.build_automation(trigger, [], conf)

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield esp32_ble_tracker.register_ble_device(var, config)

    cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))

    if CONF_WEIGHT in config:
        sens = yield sensor.new_sensor(config[CONF_WEIGHT])
        cg.add(var.set_weight(sens))
    if CONF_BATTERY_LEVEL in config:
        sens = yield sensor.new_sensor(config[CONF_BATTERY_LEVEL])
        cg.add(var.set_battery_level(sens))
    if CONF_IMPEDANCE in config:
        sens = yield sensor.new_sensor(config[CONF_IMPEDANCE])
        cg.add(var.set_impedance(sens))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield sensor.register_sensor(var, config)

    if config[CONF_PIN] == 'VCC':
        cg.add_define('USE_ADC_SENSOR_VCC')
    else:
        cg.add(var.set_pin(config[CONF_PIN]))

    if CONF_ATTENUATION in config:
        cg.add(var.set_attenuation(config[CONF_ATTENUATION]))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    params = config[CONF_SCAN_PARAMETERS]
    cg.add(var.set_scan_duration(params[CONF_DURATION]))
    cg.add(var.set_scan_interval(int(params[CONF_INTERVAL].total_milliseconds / 0.625)))
    cg.add(var.set_scan_window(int(params[CONF_WINDOW].total_milliseconds / 0.625)))
    cg.add(var.set_scan_active(params[CONF_ACTIVE]))

def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield esp32_ble_tracker.register_ble_device(var, config)
    yield sensor.register_sensor(var, config)

    if CONF_MAC_ADDRESS in config:
        cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))

    if CONF_SERVICE_UUID in config:
        if len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
            cg.add(var.set_service_uuid16(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID])))
        elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid32_format):
            cg.add(var.set_service_uuid32(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID])))
        elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid128_format):
            uuid128 = esp32_ble_tracker.as_hex_array(config[CONF_SERVICE_UUID])
            cg.add(var.set_service_uuid128(uuid128))