code: def select_newest_project(dx_project_ids):
      
      if len(dx_project_ids) == 1:
          return dx_project_ids[0]
      
      projects = [dxpy.DXProject(x) for x in dx_project_ids]
      created_times = [x.describe()["created"] for x in projects]
      paired = zip(created_times,projects)
      paired.sort(reverse=True)
      return paired[0][0]
docs: Given a list of DNAnexus project IDs, returns the one that is newest as determined by creation date.
    
      Args: 
          dx_project_ids: `list` of DNAnexus project IDs.
    
      Returns:
          `str`.