code: def convert_variables_to_tensors(composite_tensor):
      return composite_tensor._convert_variables_to_tensors()
  
file_path: tensorflow/tensorflow/python/framework/composite_tensor.py
imports: import abc
  from tensorflow.python import pywrap_tensorflow
  from tensorflow.python.util import nest
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 2 for calling a global function with example usage: convert_variables_to_tensors(composite_tensor) and returns: composite_tensor