class_docstr: A class that handles the parameters of Tensor Tracer.
class_docstr_tok: ["A","class","that","handles","the","parameters","of","Tensor","Tracer","."]
docstr: Verifies and returns the summary signatures.
  
  Returns:
    A dictionary of the signature identifiers {signature: index} that will be
    computed when trace_mode is summary.
docstr_tok: ["Verifies","and","returns","the","summary","signatures",".","Returns",":","A","dictionary","of","the","signature","identifiers","{","signature",":","index","}","that","will","be","computed","when","trace_mode","is","summary","."]
code: def _get_summary_signatures(self):
      """Verifies and returns the summary signatures.
  
      Returns:
        A dictionary of the signature identifiers {signature: index} that will be
        computed when trace_mode is summary.
      """
      signatures = self._flag_value_as_list(
          FLAG_NAME_SUMMARY_SIGNATURES
      )
      supported_signatures = self._supported_signatures()
  
      tt_signatures = []
      for signature in signatures:
          signature_with_prefix = "%s_%s" % (_TT_PREFIX, signature)
          if signature in supported_signatures:
              tt_signatures.append(signature)
          elif signature_with_prefix in supported_signatures:
              tt_signatures.append(signature_with_prefix)
          else:
              logging.warning(
                  "Unknown signature:%s. Supported signatures: %s"
                  % (signature, supported_signatures)
              )
      if not tt_signatures:
          # Default case collects norm and max only.
          return {TT_SUMMARY_MAX_ABS: 0, TT_SUMMARY_NORM: 1}
      else:
          return {
              signature: idx
              for idx, signature in enumerate(tt_signatures)
          }
  
imports: import os
  import os.path
  import re
  from absl import flags
  from tensorflow.python.ops import linalg_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import tf_logging
label_desc: Use image node_id 12 for calling the TTParameters obj's underlying member method code with example usage: obj._get_summary_signatures() and returns: dict, unknown