def restore_map(self, fine_tune_checkpoint_type='detection', load_all_detection_checkpoint_vars=False):
    raise RuntimeError('CenterNetMetaArch not supported under TF1.x.')
def restore_map(self, fine_tune_checkpoint_type='detection', load_all_detection_checkpoint_vars=False):
    raise RuntimeError('CenterNetMetaArch not supported under TF1.x.')