PresolveValues</a> ret = (<a class="code" href="classGoogle_1_1OrTools_1_1LinearSolver_1_1MPSolverParameters.html">MPSolverParameters</a>.<a class="code" href="classGoogle_1_1OrTools_1_1LinearSolver_1_1MPSolverParameters.html#ad01b184e1c49d8aabd15a268ff976ac8">PresolveValues</a>)<a class="code" href="classGoogle_1_1OrTools_1_1LinearSolver_1_1operations__research__linear__solverPINVOKE.html">operations_research_linear_solverPINVOKE</a>.<a class="code" href="classGoogle_1_1OrTools_1_1LinearSolver_1_1operation