code: def add_emission_tot(self, chunksize=2**19, comp_filter=default_compression,
                           overwrite=False, params=dict(),
                           chunkslice='bytes'):
          
          kwargs = dict(overwrite=overwrite, chunksize=chunksize, params=params,
                        comp_filter=comp_filter, atom=tables.Float32Atom(),
                        title='Summed emission trace of all the particles')
          return self.add_trajectory('emission_tot', **kwargs)
docs: Add the `emission_tot` array in '/trajectories'.