class_docstr: SAR implementation for PySpark.
code: def _format(self, string, **kwargs):
      return string.format(**self.header, **kwargs)
  
file_path: recommenders/contrib/sarplus/python/pysarplus/SARPlus.py
imports: import logging
  import pandas
  from pyspark.sql.types import StructType, StructField, IntegerType, FloatType
  from pyspark.sql.functions import pandas_udf, PandasUDFType
  from pysarplus import SARModel
  import pyspark.sql.functions
label_desc: Use image node_id 2 for calling the SARPlus obj's underlying member method code with example usage: obj._format(string) and returns: string