code: def pser(self):
      return pd.Series([1, 2, 3, 4, 5, 6, 7], name="x")
  
file_path: spark/python/pyspark/pandas/tests/test_indexops_spark.py
imports: import pandas
  from pyspark.errors import AnalysisException
  from pyspark.sql import functions
  from pyspark import pandas
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 1 for calling the SparkIndexOpsMethodsTestsMixin obj's underlying member method code with example usage: obj.pser() and returns: pd