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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 delete(self):
 """Delete a running cluster."""

        stacks = [
            self.utilities_name,
            self.spot_nodes_name,
            self.node_group_name,
            self.cluster_name,
            self.vpc_name,
            self.role_name
        ]
        # Execute creation.
        for stack in tqdm.tqdm(stacks, ncols=70):
            self.delete_stack(stack)