2, 'waiters' => [ 'VaultExists' => [ 'operation' => 'DescribeVault', 'delay' => 3, 'maxAttempts' => 15, 'acceptors' => [ [ 'state' => 'success', 'matcher' => 'status', 'expected' => 200, ], [ 'state' => 'retry', 'matcher' => 'error', 'expected' => 'ResourceNotFoundException', ], ], ], 'VaultNotExists' => [ 'operation' => 'DescribeVault', 'delay' => 3, 'maxAttempts' => 15, 'acceptors' => [ [ 'state' => 'retry', 'matcher' => 'status', 'expected' => 200, ], [ 'state' => 'success', 'matcher' => 'error', 'expected' => 'ResourceNotFoundException', ], ], ], ],];