code: def dynamic_import(import_path, alias=dict()):
      """dynamic import module and class
  
      :param str import_path: syntax 'module_name:class_name'
          e.g., 'espnet.transform.add_deltas:AddDeltas'
      :param dict alias: shortcut for registered class
      :return: imported class
      """
      if import_path not in alias and ":" not in import_path:
          raise ValueError(
              "import_path should be one of {} or "
              'include ":", e.g. "espnet.transform.add_deltas:AddDeltas" : '
              "{}".format(set(alias), import_path)
          )
      if ":" not in import_path:
          import_path = alias[import_path]
  
      module_name, objname = import_path.split(":")
      m = importlib.import_module(module_name)
      return getattr(m, objname)
  
label_desc: Use image node_id 1 for calling a global function with example usage: dynamic_import(import_path, alias) and returns: getattr