code: def test_fc(self):
      m, n, k = (15, 15, 15)
      X = np.random.rand(m, k).astype(np.float32) - 0.5
  
      workspace.FeedBlob("x", X)
      model = ModelHelper(name="test_model")
      brew.fc(model, "x", "out_1", k, n)
      model.Validate()
      workspace.RunNetOnce(model.param_init_net)
      workspace.RunNetOnce(model.net)
  
imports: from caffe2.python import brew, core, scope, workspace
  from caffe2.python.modeling.parameter_info import ParameterTags
  from caffe2.python.model_helper import ModelHelper
  from caffe2.python.cnn import CNNModelHelper
  import unittest
  import numpy
label_desc: Use image node_id 3 for calling the BrewTest obj's underlying member method code with example usage: obj.test_fc() without return types