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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 from_file(cls, filename, *, strict=True):
 """ Create a new Config object from a configuration file. Args: filename (str):
 The location and name of the configuration file. strict (bool):
 If true raises a ConfigLoadError when the configuration cannot be found. Returns: An instance of the Config class. Raises: ConfigLoadError: If the configuration cannot be found. """

        config = cls()
        config.load_from_file(filename, strict=strict)
        return config