N tf$.$constant$(201\mathrm{.}0)$ # Number of steps to split tf$.$constant$($T $($N$-1))$ N$\_$int tf$.$cast$($N$,$ dtypetf.dtypes.int$32)$ Tranform the constant N into an int$32$ type. t tf$.$linspace $(0\mathrm{.}0,$ T$,$ Nint$)$ #Simulating the normal shocks tf$.$random.normal $($shape N$\_$int $1,$ mean$=0.$stddev$=1.,$ dtypetf.dtypes.float$32)$ tf$.$constant $(0\mathrm{.}0,$ shape$[$We need to pass the shape here to avoid an error when concate nating and $.$ z$=$tf$.$concat$([$z theta,z$],$axis$=$ theta$)$ Construct the Brownian Motions k$/$L$=$tf$.$math.cumsum$($z$)*$tf$.$sgrt$($dt$)$ TO BE FILLED St$=$tf$.$math.exp$($lnSt$)$ St What should I replace TO BE FILLED with to get the desire result $?$ tf$.$math.log $($Wt $)$ S$0+($r$-$sigma$^**2/2)^*$ t$+$sigma$^*$ Wt; f$.$math.log$($S$0)+($r$-$sigma$^**2/2)^*$ t$+$sigma$^*$ Wt; S$0^*$ tf$.$exp$(($r$-$sigma$^**2/2)^*$ t$+$sigma$*$Wt$)$