code: def list_species(model, seeds=None):
      
      seeds = None or []
  
      from ecell4_base.core import Species
  
      if not isinstance(seeds, list):
          seeds = list(seeds)
  
      expanded = model.expand([Species(serial) for serial in seeds])
      species_list = [sp.serial() for sp in expanded.list_species()]
      species_list = sorted(set(seeds + species_list))
      return species_list
docs: This function is deprecated.