code: def testFireTraceInitialization(self):
      t = trace.FireTrace(10)
      self.assertIsNotNone(t)
      self.assertIsNotNone(t.elements)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from fire import testutils
  from fire import trace
label_desc: Use image node_id 1 for calling the FireTraceTest obj's underlying member method code with example usage: obj.testFireTraceInitialization() without return types