code: def _get_backend_name_prefix(name, backend):
      if backend is not None and not name.startswith(
          backend.lower() + ":"
      ):
          name = backend.lower() + ":" + name
  
      return name
  
imports: import importlib
  import inspect
  import os
  from hls4ml.utils.string_utils import convert_to_snake_case
label_desc: Use image node_id 6 for calling a global function with example usage: _get_backend_name_prefix(name, backend) and returns: name