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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 get(self, name, template_path):
        '''
        Returns the renderer object.

        :param name: name of the requested renderer
        :param template_path: path to the template
        '''
        if name not in self._renderers:
            cls = self._renderer_classes.get(name)
            if cls is None:
                return None
            else:
                self._renderers[name] = cls(template_path, self.extra_vars)
        return self._renderers[name]