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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_associations(self, env):
 """ Get all the associations for this env. Root cannot have associations, so return None for root. returns a map of hostnames to environments. """


        if env.is_root:
            return None

        associations = self.associations.get_all()
        return [assoc for assoc in associations
                if associations[assoc] == self._get_view_path(env)]