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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 _encode_var(cls, var):
 """ Encodes a variable to the appropriate string format for ini files. :param var: The variable to encode :return: The ini representation of the variable :rtype: str """


        if isinstance(var, str):
            if any(_ in var for _ in cls.requires_quotes):
                # NOTE: quoted strings should just use '"' according to the spec
                return '"' + var.replace('"', '\\"') + '"'
            return var
        else:
            return str(var)