ISwapRouter

    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        int24 tickSpacing;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

   struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
    }

    struct ExactOutputSingleParams {
        address tokenIn;
        address tokenOut;
        int24 tickSpacing;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
        uint160 sqrtPriceLimitX96;
    }

    struct ExactOutputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
    }

  function exactInputSingle(
    struct ISwapRouter.ExactInputSingleParams params
  ) external returns (uint256 amountOut)

  function exactInput(
    struct ISwapRouter.ExactInputParams params
  ) external returns (uint256 amountOut)

  function exactOutputSingle(
    struct ISwapRouter.ExactOutputSingleParams params
  ) external returns (uint256 amountIn)

  function exactOutput(
    struct ISwapRouter.ExactOutputParams params
  ) external returns (uint256 amountIn)