old_contents: from radical.entk import Pipeline, Stage, Task
  import pytest
  
  def test_pipeline_initialization():
  
      """
      ***Purpose***: Test if pipeline is correctly initialized upon creation
      """
  
      p = Pipeline()
  
      assert type(p._uid) == str
  
      
  
new_contents: from radical.entk import Pipeline, Stage, Task
  import pytest
  
  def test_pipeline_initialization():
  
      """
      ***Purpose***: Test if pipeline is correctly initialized upon creation
      """
  
      p = Pipeline()
  
      assert type(p._uid) == str
  
      
      #Further tests need to be written when Exchange_methods base class is implemented along with its inherited classes.  
      
  
subject: Update test_pipeline.py