99#include "Simulation.h" 
  101  integer,
 intent(in)               :: property
 
  102  real,
 intent(out)                 :: value
 
  103  real,
 intent(in),
 optional        :: weights(:)
 
  104  integer,
 intent(in),
 optional     :: speciesMask(NSPECIES)
 
subroutine Multispecies_getSum(property, value, weights, speciesMask)