What is the value of the variable count after the following statements are executed?

device $=\{"$vendor$"$:"Cisco", "model":"ASR$9010","$os$\_$type":"xr$","$rp$1\_$serial":"DX$482$DYYS$8489$L$"\}$

count $=0$

if device$[\text{'}$os$\_$type'$]==$ 'ios':

count $=$ count $+1$

elif device$[\text{'}$os$\_$type'$]==\text{'}$xr$\text{'}$:

count $=$ count $+1$

elif device$[\text{'}$os$\_$type'$]==$ 'nxos':

count $=$ count $+1$

elif device$[\text{'}$os$\_$type'$]==\text{'}$xe$\text{'}$:

count $=$ count $+1$

else:

count $=-1$

$0$

$1$

$2$

$3$