<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def create_cluster(self):
 """Creates a cluster on Amazon EKS . """

        self.create_stack(
            self.cluster_name,
            'amazon-eks-cluster.yaml',
            parameters=define_parameters(
                ClusterName=self.cluster_name,
                ControlPlaneSecurityGroup=self.security_groups,
                Subnets=self.subnet_ids
            )
        )