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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, identifier):
 """Permanently removes an SSH key."""

    mgr = SoftLayer.SshKeyManager(env.client)

    key_id = helpers.resolve_id(mgr.resolve_ids, identifier, 'SshKey')
    if not (env.skip_confirmations or formatting.no_going_back(key_id)):
        raise exceptions.CLIAbort('Aborted')

    mgr.delete_key(key_id)