Move imports to top for tof (#29203)

* Move imports to top for tof

* Isorted imports

homeassistant/components/tof/sensor.py

@@ -1,15 +1,16 @@
 """Platform for Time of Flight sensor VL53L1X from STMicroelectronics."""
 
 import asyncio
-import logging
 from functools import partial
+import logging
 
+from VL53L1X2 import VL53L1X  # pylint: disable=import-error
 import voluptuous as vol
 
-from homeassistant.components.sensor import PLATFORM_SCHEMA
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components import rpi_gpio
+from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
@@ -51,7 +52,6 @@ def init_tof_1(xshut):
 
 async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
     """Reset and initialize the VL53L1X ToF Sensor from STMicroelectronics."""
-    from VL53L1X2 import VL53L1X  # pylint: disable=import-error
 
     name = config.get(CONF_NAME)
     bus_number = config.get(CONF_I2C_BUS)