What is the proper way to count binary variables in my jump model?

I have been using:

```
MathOptInterface = MOI
const_types = list_of_constraint_types(model)
n_bin = 0
n_lin = 0
for i = 1:length(const_types)
var = const_types[i][1]
const_type = const_types[i][2]
l = num_constraints(model, var, const_type)
if const_type == MathOptInterface.ZeroOne
n_bin += l
else
n_lin += l
end
end
```

And then we have number of binary variables is `n_bin`

and number of real variables (Assuming there are only two types) is `num_variables(model) - n_bin`

and number of constraints (all are linear) is `n_lin`

. Does this seem right?