code: def forward_meta(self, features):
      return self.meta_layer(features.view(1, -1))
  
imports: from lib.utils.builder_util import *
  from lib.utils.search_structure_supernet import *
  from lib.models.builders.build_supernet import *
  from lib.utils.op_by_layer_dict import flops_op_dict
  from timm.models.layers import SelectAdaptivePool2d
  from timm.models.layers.activations import hard_sigmoid
label_desc: Use image node_id 6 for calling the SuperNet obj's underlying member method code with example usage: obj.forward_meta(features) and returns: self