class_docstr: Per-stream handler of EventListener gRPC streams.
class_docstr_tok: ["Per-stream","handler","of","EventListener","gRPC","streams","."]
docstr: Callback for Event proto received through the gRPC stream.
  
  This Event proto carries a Tensor in its summary.value[0] field.
  
  Args:
    event: The Event proto from the stream to be processed.
docstr_tok: ["Callback","for","Event","proto","received","through","the","gRPC","stream",".","This","Event","proto","carries","a","Tensor","in","its","summary.value","[","0","]","field",".","Args",":","event",":","The","Event","proto","from","the","stream","to","be","processed","."]
code: def on_value_event(self, event):
      """Callback for Event proto received through the gRPC stream.
  
      This Event proto carries a Tensor in its summary.value[0] field.
  
      Args:
        event: The Event proto from the stream to be processed.
      """
      raise NotImplementedError(
          "on_value_event() is not implemented in the base servicer class"
      )
  
imports: import collections
  import json
  import queue
  import threading
  import time
  from concurrent import futures
  import grpc
  from tensorflow.core.debug import debug_service_pb2
  from tensorflow.core.framework import graph_pb2
  from tensorflow.python.debug.lib import debug_graphs
  from tensorflow.python.debug.lib import debug_service_pb2_grpc
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import compat
label_desc: Use image node_id 4 for calling the EventListenerBaseStreamHandler obj's underlying member method code with example usage: obj.on_value_event(event) without return types