class_docstr: Subclass of RectPartitioner, for 1D problems
code: def get_num_loc_cells(self):
      return [self.subd_hi_ix[0] - self.subd_lo_ix[0]]
  
imports: from numpy import ascontiguousarray, frombuffer, zeros
label_desc: Use image node_id 2 for calling the RectPartitioner1D obj's underlying member method code with example usage: obj.get_num_loc_cells() and returns: list