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10interface ISwapRouter {
11    struct ExactInputSingleParams {
12        address tokenIn;
13        address tokenOut;
14        uint24 fee;
15        address recipient;
16        uint256 deadline;
17        uint256 amountIn;
18        uint256 amountOutMinimum;
19        uint160 sqrtPriceLimitX96;
20    }
21
22    struct ExactInputParams {
23        bytes path;
24        address recipient;
25        uint256 deadline;
26        uint256 amountIn;
27        uint256 amountOutMinimum;
28    }
29
30    struct ExactOutputSingleParams {
31        address tokenIn;
32        address tokenOut;
33        uint24 fee;
34        address recipient;
35        uint256 deadline;
36        uint256 amountOut;
37        uint256 amountInMaximum;
38        uint160 sqrtPriceLimitX96;
39    }
40
41    struct ExactOutputParams {
42        bytes path;
43        address recipient;
44        uint256 deadline;
45        uint256 amountOut;
46        uint256 amountInMaximum;
47    }
48
49    function exactInputSingle(
50        ExactInputSingleParams calldata params
51    ) external payable returns (uint256 amountOut);
52
53    function exactInput(
54        ExactInputParams calldata params
55    ) external payable returns (uint256 amountOut);
56
57    function exactOutputSingle(
58        ExactOutputSingleParams calldata params
59    ) external payable returns (uint256 amountIn);
60
61    function exactOutput(
62        ExactOutputParams calldata params
63    ) external payable returns (uint256 amountIn);
64}
65
66contract UniV3Looping is IVaultCallback {