code: def _unique_string(self, seen, avg_options=1.3, p_suffix=0.1):
      s = None
      while s in seen:
          s = moar(avg_options, p_suffix)
      seen.add(s)
      return s
  
imports: import argparse
  import contextlib
  import os
  import random
  import sys
  import ninja_syntax
label_desc: Use image node_id 2 for calling the GenRandom obj's underlying member method code with example usage: obj._unique_string(seen, avg_options, p_suffix) and returns: s