Access the model list information for nlmixr's nlme user functions
nlmeModList(x, value)
Parameter to get or set. If this parameter is an environment, change the nlme model environment to this environment.
Value of the parameter that is being set.
When both x and value are missing, this is the nlmeModListEnv. When x is present and value is missing, return the value x in the current nlmeModListEnv.