code: def make_program() -> lp.Program:
      """Define the program topology."""
      program = lp.Program("hello_world")
  
      node = lp.PyClassNode(HelloWorld)
      program.add_node(node, label="hello_printer")
      return program
  
imports: from absl import app
  import launchpad
label_desc: Use image node_id 1 for calling a global function with example usage: make_program() and returns: program