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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 _are_safety_checks_disabled(self, caller=u"unknown_function"):
 """ Return ``True`` if safety checks are disabled. :param string caller: the name of the caller function :rtype: bool """

        if self.rconf.safety_checks:
            return False
        self.log_warn([u"Safety checks disabled => %s passed", caller])
        return True