docstr: Set up (run only once).
code: def setUpClass(self):
      """
      Set up (run only once).
      """
  
      ## Simulate test data
      np.random.seed(10)
      n, d = 100, 10
      self.sf = tc.SFrame()
      for i in range(d):
          self.sf.add_column(
              tc.SArray(np.random.randn(n)), inplace=True
          )
      target = np.random.randint(2, size=n)
      target[0] = 0
      target[1] = 1
  
      ## Create the model
      self.sf["target"] = target
      self.target = "target"
  
      self.model = None
      self.regression = False
      self.has_probability = True
      self.has_predict_topk = False
      self.has_probability_vector = True
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import uuid
  from turicreate.toolkits import evaluation
  from turicreate.toolkits._main import ToolkitError
  import shutil
  import numpy
label_desc: Use image node_id 1 for calling the FastPathPredictionTest obj's underlying member method code with example usage: obj.setUpClass() without return types