code: def runTest(self):
      document_assembler = (
          DocumentAssembler()
          .setInputCol("text")
          .setOutputCol("document")
      )
      date_matcher = (
          DateMatcher()
          .setInputCols(["document"])
          .setOutputCol("date")
          .setOutputFormat("yyyyMM")
          .setSourceLanguage("en")
      )
  
      assembled = document_assembler.transform(self.data)
      date_matcher.transform(assembled).show()
  
file_path: spark-nlp/python/test/annotator/matcher/date_matcher_test.py
imports: import unittest
  import pytest
  from sparknlp.annotator import *
  from sparknlp.base import *
  from test.util import SparkContextForTest
label_desc: Use image node_id 2 for calling the DateMatcherTestSpec obj's underlying member method code with example usage: obj.runTest() without return types