code: def testUnicode(self):
      result = MetadataReader(
          filename=join(self.audioDir, "test-unicode.flac")
      )()
      self.assertEqualVector(
          result[:7],
          (
              "test flac &n\"jef';:/?.>,<-_=+)(*&^%$#@!~`",
              '?mtg $#@!$"&',
              "",
              "",
              "",
              "",
              "",
          ),
      )
  
file_path: essentia/test/src/unittests/io/test_metadatareader.py
imports: from essentia_test import *
  import os
label_desc: Use image node_id 7 for calling the TestMetadataReader obj's underlying member method code with example usage: obj.testUnicode() without return types