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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_for_request(self):
 """Verify enough information is available for requesting compose."""

        if not self.use_packages and not self.modules and not self.pulp:
            raise ValueError("Nothing to compose (no packages, modules, or enabled pulp repos)")

        if self.packages and not self.koji_tag:
            raise ValueError('koji_tag is required when packages are used')