def_module_params('lp', 
                  export=True,
                  params=(
                  ('rep_freq', UINT, 0, 'the report frequency, in how many iterations print the cost and other info '),
                   ('min', BOOL, False, 'minimize cost'),
                   ('print_stats', BOOL, False, 'print statistic'),
                   ('simplex_strategy', UINT, 0, 'simplex strategy for the solver'),
                   ('enable_hnf', BOOL, True, 'enable hnf cuts'),
                   ('bprop_on_pivoted_rows', BOOL, True, 'propagate bounds on rows changed by the pivot operation'),
                   ('nla', BOOL, False, 'call nonlinear integer solver with incremental linearization'),
                   ('print_ext_var_names', BOOL, False, 'print external variable names')
                          ))