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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 check_field_exists(self, field_name):
 """Implements field exists check for debugging purposes. :param field_name: :return: """

        if not settings.DEBUG:
            return

        try:
            self.lookup_opts.get_field(field_name)

        except FieldDoesNotExist as e:
            raise AdmirarchyConfigurationError(e)