code: def configure_ghostboxes(self, nghostx=0, nghosty=0, nghostz=0):
          
          clibrebound.nghostx = c_int(nghostx)
          clibrebound.nghosty = c_int(nghosty)
          clibrebound.nghostz = c_int(nghostz)
          return
docs: Initialize the ghost boxes.
  
          This function only needs to be called it boundary conditions other than "none" or
          "open" are used. In such a case the number of ghostboxes must be known and is set 
          with this function. 
          
          Parameters
          ----------
          nghostx, nghosty, nghostz : int
              The number of ghost boxes in each direction. All values default to 0 (no ghost boxes).