class_docstr: Sentinel class for uninspected arguments' dtype.
class_docstr_tok: ["Sentinel","class","for","uninspected","arguments","'","dtype","."]
code: def __repr__(self):
      return "..."
  
imports: import numpy
  import tensorflow.compat.v2
  from tensorflow.python.util import nest
label_desc: Use image node_id 1 for calling the _NotYetSeen obj's underlying member method code with example usage: obj.__repr__() and returns: str