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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 resolve_domain(self, pipeline):
 """Resolve a concrete domain for ``pipeline``. """

        domain = pipeline.domain(default=self._default_domain)
        if domain is GENERIC:
            raise ValueError(
                "Unable to determine domain for Pipeline.\n"
                "Pass domain=<desired domain> to your Pipeline to set a "
                "domain."
            )
        return domain