public SWIGTYPE_p_FormulaUnitsData getFormulaUnitsDataForAssignment(string sid)
{
IntPtr cPtr = libsbmlPINVOKE.Model_getFormulaUnitsDataForAssignment(swigCPtr, sid);
SWIGTYPE_p_FormulaUnitsData ret = (cPtr == IntPtr.Zero) ? null : new SWIGTYPE_p_FormulaUnitsData(cPtr, false);
if (libsbmlPINVOKE.SWIGPendingException.Pending) throw libsbmlPINVOKE.SWIGPendingException.Retrieve();
return ret;
}