type t = Lp_highs_bindings_types.M(G).ModelStatus.t = | NOTSET| LOAD_ERROR| MODEL_ERROR| PRESOLVE_ERROR| SOLVE_ERROR| POSTSOLVE_ERROR| MODEL_EMPTY| OPTIMAL| INFEASIBLE| UNBOUNDED_OR_INFEASIBLE| UNBOUNDED| OBJECTIVE_BOUND| OBJECTIVE_TARGET| TIME_LIMIT| ITERATION_LIMIT| UNKNOWN| SOLUTION_LIMIT| INTERRUPT
val to_string : t -> string