code: def testSequenceWhichContainsEmptySequenceButCanDetermineType(self):
      # yaml
      testFile = 'foo: [[], ["wassup"], []]'
      writeFile(testFile, "testfile")
  
      p = YamlInput(filename="testfile")()
      os.remove("testfile")
  
      self.assertEqualVector(p["foo"], [[], ["wassup"], []])
  
      # json
      testFile = '{ "foo": [[], ["wassup"], []] }'
      writeFile(testFile, "testfile")
  
      p = YamlInput(filename="testfile", format="json")()
      os.remove("testfile")
  
      self.assertEqualVector(p["foo"], [[], ["wassup"], []])
  
imports: from essentia_test import *
  import os
label_desc: Use image node_id 13 for calling the TestYamlInput obj's underlying member method code with example usage: obj.testSequenceWhichContainsEmptySequenceButCanDetermineType() without return types