def build_vovnet_backbone(cfg, input_shape):
    """
    Create a VoVNet instance from config.

    Returns:
        VoVNet: a :class:`VoVNet` instance.
    """
    out_features = cfg.OUT_FEATURES
    return VoVNet(cfg, input_shape.channels, out_features=out_features)

    Create a VoVNet instance from config.

    Returns:
        VoVNet: a :class:`VoVNet` instance.
    
tridet/modeling/feature_extractor/vovnet.py