```\n            function increaseLiquidity(IncreaseLiquidityParams calldata params)\n                 external payable override checkDeadline(params.deadline)\n                    returns (\n                     uint128 liquidity, uint256 amount0, uint256 amount1)\n            {\n            Position storage position = _positions[params.tokenId];\n                PoolAddress.PoolKey memory poolKey = _poolIdToPoolKey[position.poolId];\n                    IUniswapV3Pool pool;\n                        (liquidity, amount0, amount1, pool) = addLiquidity(\n```\n