code: def check_configs(self):
      if self.config["small-dim"] <= 0:
          raise RuntimeError("small-dim must be set and >0.")
      if self.config["big-dim"] <= self.config["small-dim"]:
          raise RuntimeError("big-dim must be greater than small-dim")
  
imports: from __future__ import print_function
  import math
  import re
  import sys
  from libs.nnet3.xconfig.basic_layers import XconfigLayerBase
label_desc: Use image node_id 4 for calling the XconfigPrefinalLayer obj's underlying member method code with example usage: obj.check_configs() without return types