code: def variable_accessed(variable):
      """Notifies all tapes in the stack that a variable has been accessed.
  
      Args:
        variable: variable to be watched.
      """
      variables = _variables_override(variable)
      for var in variables:
          pywrap_tfe.TFE_Py_TapeVariableAccessed(var)
          pywrap_tfe.TFE_Py_VariableWatcherVariableAccessed(var)
  
file_path: tensorflow/tensorflow/python/eager/tape.py
imports: from tensorflow.python import pywrap_tfe
label_desc: Use image node_id 7 for calling a global function with example usage: variable_accessed(variable) without return types