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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 _load_resource(self, source_r, abs_path=False):
 """The CSV package has no reseources, so we just need to resolve the URLs to them. Usually, the CSV package is built from a file system ackage on a publically acessible server. """


        r = self.doc.resource(source_r.name)

        r.url = self.resource_root.join(r.url).inner