def get_act_fn(name='relu'):
    """ Activation Function Factory
    Fetching activation fns by name with this function allows export or torch script friendly
    functions to be returned dynamically based on current config.
    """
    if name in _OVERRIDE_FN:
        return _OVERRIDE_FN[name]
    use_me = not (config.is_exportable() or config.is_scriptable() or config.is_no_jit())
    if use_me and name in _ACT_FN_ME:
        # If not exporting or scripting the model, first look for a memory optimized version
        # activation with custom autograd, then fallback to jit scripted, then a Python or Torch builtin
        return _ACT_FN_ME[name]
    if config.is_exportable() and name in ('silu', 'swish'):
        # FIXME PyTorch SiLU doesn't ONNX export, this is a temp hack
        return swish
    use_jit = not (config.is_exportable() or config.is_no_jit())
    # NOTE: export tracing should work with jit scripted components, but I keep running into issues
    if use_jit and name in _ACT_FN_JIT:  # jit scripted models should be okay for export/scripting
        return _ACT_FN_JIT[name]
    return _ACT_FN_DEFAULT[name]
 Activation Function Factory
    Fetching activation fns by name with this function allows export or torch script friendly
    functions to be returned dynamically based on current config.
    
ControlNet-v1-1-nightly/annotator/normalbae/models/submodules/efficientnet_repo/geffnet/activations/__init__.py