class_docstr: Unit test class for an already trained model.
class_docstr_tok: ["Unit","test","class","for","an","already","trained","model","."]
code: def setUpClass(self):
      text = [
          "hello friend",
          "how exciting",
          "mostly exciting",
          "hello again",
      ]
      score = [0, 1, 1, 0]
      self.docs = tc.SFrame({"text": text, "score": score})
  
      self.features = ["text"]
      self.num_features = 1
      self.target = "score"
      self.method = "bow-logistic"
      self.model = tc.text_classifier.create(
          self.docs,
          target=self.target,
          features=self.features,
          method="auto",
      )
  
      self.num_examples = 4
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import tempfile
  import turicreate
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits._internal_utils import _mac_ver
  from .None import util
  import sys
label_desc: Use image node_id 1 for calling the TextClassifierTest obj's underlying member method code with example usage: obj.setUpClass() without return types