code: def test_package():
      """
      This function tests both the authorship and version of pyrtfolio.
      """
  
      print(pyrtfolio.__author__)
      print(pyrtfolio.__version__)
  
imports: import pyrtfolio
  from pyrtfolio.StockPortfolio import StockPortfolio
label_desc: Use image node_id 1 for calling a global function with example usage: test_package() without return types