0xbaa2abde?0xbaa2abde is the function selector for removeLiquidity(address,address,uint256,uint256,uint256,address,uint256). Removes liquidity from a pool.
When a transaction's data begins with 0xbaa2abde, it is calling removeLiquidity. The selector is the first four bytes of the keccak-256 hash of the signature removeLiquidity(address,address,uint256,uint256,uint256,address,uint256), which is how wallets and explorers work out which function a payload is for.