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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 validate_config(cls, config):
 """ Validates that required config entries are present. Each check requires a `host`, `port`, `rise` and `fall` to be configured. The rise and fall variables are integers denoting how many times a check must pass before being considered passing and how many times a check must fail before being considered failing. """

        if "rise" not in config:
            raise ValueError("No 'rise' configured")
        if "fall" not in config:
            raise ValueError("No 'fall' configured")

        cls.validate_check_config(config)