code: def default_assign_roles_fn(agents):
      """
      Assign agent role.
  
      Default role assignment.
  
      :param:
          list of agents
      """
      for i, a in enumerate(agents):
          a.disp_id = f"Agent_{i}"
  
imports: import importlib
  import math
  import re
  from enum import Enum
label_desc: Use image node_id 5 for calling a global function with example usage: default_assign_roles_fn(agents) without return types