code: def idx_pairs(self):
      return list(zip(self.psidxs, self.pidxs))
  
imports: import pandas
  import pyspark.pandas
  from pyspark.testing.pandasutils import PandasOnSparkTestCase, TestUtils
label_desc: Use image node_id 5 for calling the DatetimeIndexTestingFuncMixin obj's underlying member method code with example usage: obj.idx_pairs() and returns: list