Warning log: 'Detected blocking call to open inside the event loop by custom integration 'smartir''

[cdeharo]

Home Assistant version 2024.6.4

SmartIR version 1.17.9

Describe the bug

Warning in the logs.

Log

2024-06-30 15:06:28.929 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open inside the event loop by custom integration 'smartir' at custom_components/smartir/climate.py, line 85: with open(device_json_path) as j: (offender: /config/custom_components/smartir/climate.py, line 85: with open(device_json_path) as j:), please report it to the author of the 'smartir' custom integration
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/src/homeassistant/homeassistant/__main__.py", line 223, in <module>
    sys.exit(main())
  File "/usr/src/homeassistant/homeassistant/__main__.py", line 209, in main
    exit_code = runner.run(runtime_conf)
  File "/usr/src/homeassistant/homeassistant/runner.py", line 190, in run
    return loop.run_until_complete(setup_and_run_hass(runtime_config))
  File "/usr/local/lib/python3.12/asyncio/base_events.py", line 672, in run_until_complete
    self.run_forever()
  File "/usr/local/lib/python3.12/asyncio/base_events.py", line 639, in run_forever
    self._run_once()
  File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1988, in _run_once
    handle._run()
  File "/usr/local/lib/python3.12/asyncio/events.py", line 88, in _run
    self._context.run(self._callback, *self._args)
  File "/usr/src/homeassistant/homeassistant/setup.py", line 165, in async_setup_component
    result = await _async_setup_component(hass, domain, config)
  File "/usr/src/homeassistant/homeassistant/setup.py", line 402, in _async_setup_component
    result = await task
  File "/usr/src/homeassistant/homeassistant/components/climate/__init__.py", line 156, in async_setup
    await component.async_setup(config)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 149, in async_setup
    self.hass.async_create_task_internal(
  File "/usr/src/homeassistant/homeassistant/core.py", line 828, in async_create_task_internal
    task = create_eager_task(target, name=name, loop=self.loop)
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 37, in create_eager_task
    return Task(coro, loop=loop, name=name, eager_start=True)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 319, in async_setup_platform
    await self._platforms[key].async_setup(platform_config, discovery_info)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 303, in async_setup
    await self._async_setup_platform(async_create_setup_awaitable)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 363, in _async_setup_platform
    awaitable = create_eager_task(awaitable, loop=hass.loop)
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 37, in create_eager_task
    return Task(coro, loop=loop, name=name, eager_start=True)
  File "/config/custom_components/smartir/climate.py", line 85, in async_setup_platform
    with open(device_json_path) as j: