docs: def showLipds(D=None):
      """
      Display the dataset names of a given LiPD data
  
      | Example
      | lipd.showLipds(D)
  
      :pararm dict D: LiPD data
      :return none:
      """
  
      if not D:
          print("Error: LiPD data not provided. Pass LiPD data into the function.")
      else:
          print(json.dumps(D.keys(), indent=2))
  
      return