code: def runTest(self):
      document_assembler = (
          DocumentAssembler()
          .setInputCol("text")
          .setOutputCol("document")
      )
      date_matcher = (
          MultiDateMatcher()
          .setInputCols(["document"])
          .setOutputCol("date")
          .setOutputFormat("yyyy/MM/dd")
          .setRelaxedFactoryStrategy(MatchStrategy.MATCH_ALL)
      )
  
      pipeline = Pipeline(stages=[document_assembler, date_matcher])
      model = pipeline.fit(self.data)
      result = model.transform(self.data)
  
      actual_dates = result.select(size("date.result")).collect()[0][0]
      self.assertEquals(actual_dates, 4)
  
file_path: spark-nlp/python/test/annotator/matcher/multi_date_matcher_test.py
imports: import unittest
  import pytest
  from sparknlp.annotator import *
  from sparknlp.base import *
  from pyspark.sql.functions import size
  from test.util import SparkContextForTest
label_desc: Use image node_id 2 for calling the MultiDateMatcherTestSpec obj's underlying member method code with example usage: obj.runTest() without return types