code: def variable_list(self):
      var_list = {"W": "W:0"}
      if self.use_bias:
          var_list["bias"] = "bias:0"
      var_list.update(super(FCLayer, self).variable_list)
      return var_list
  
imports: from .basic_model import BasicModel
  import tensorflow
  import numpy
  import copy
label_desc: Use image node_id 3 for calling the FCLayer obj's underlying member method code with example usage: obj.variable_list() and returns: var_list