Liquidity
data class LiquidityPoolWithdrawOpXdr(val liquidityPoolId: PoolIDXdr, val amount: Int64Xdr, val minAmountA: Int64Xdr, val minAmountB: Int64Xdr)
XDR Source: struct LiquidityPoolWithdrawOp { PoolID liquidityPoolID; int64 amount; // amount of pool shares to withdraw int64 minAmountA; // minimum amount of first asset to withdraw int64 minAmountB; // minimum amount of second asset to withdraw };