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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_hass_config():
 """Try to find HASS config."""

    if "HASSIO_TOKEN" in os.environ:
        return "/config"

    config_dir = default_hass_config_dir()

    if os.path.isdir(config_dir):
        return config_dir

    raise ValueError(
        "Unable to automatically find the location of Home Assistant "
        "config. Please pass it in."
    )