CVXPY
Maximize
  x
Subject To
Bounds
 [1.] <= x[True]
 x[True] <= [3.5]
End
----------------------------------------
AFTER COMPILATION
Minimize
  - C0
Subject To
Bounds
 1 <= C0 <= 3.5
End
----------------------------------------
GUROBI
Maximize
  x[0]
Subject To
Bounds
 1 <= x[0] <= 3.5
End