class_docstr: Container for the repeated units in an Architecture.
class_docstr_tok: ["Container","for","the","repeated","units","in","an","Architecture","."]
code: def input_selector(self):
      return InputSelector(self.input_indices)
  
imports: import abc
  import collections
  import enum
  import time
  from absl import logging
  from model_search import block_builder
  from model_search import utils
  from model_search.architecture import architecture_utils
  from model_search.proto import phoenix_spec_pb2
  import tensorflow.compat.v2
label_desc: Use image node_id 2 for calling the Node obj's underlying member method code with example usage: obj.input_selector() and returns: InputSelector