parameters: (self, execution_index, execution)
docstring: Monitor method for top-level execution events.
  
      Return values (if any) are ignored by the associated DebugDataReader.
  
      Args:
        execution_index: The index of the top-level execution event, as an int.
        execution: An Execution data object, for a top-level op or function
          execution event.
docstring_summary: Monitor method for top-level execution events.
docstring_tokens: Monitor method for top - level execution events .
function: def on_execution(self, execution_index, execution):
      """Monitor method for top-level execution events.
  
      Return values (if any) are ignored by the associated DebugDataReader.
  
      Args:
        execution_index: The index of the top-level execution event, as an int.
        execution: An Execution data object, for a top-level op or function
          execution event.
      """
function_tokens: def on_execution ( self , execution_index , execution ) :