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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 cli(env, securitygroup_id):
 """Deletes the given security group"""

    mgr = SoftLayer.NetworkManager(env.client)
    if not mgr.delete_securitygroup(securitygroup_id):
        raise exceptions.CLIAbort("Failed to delete security group")