code: def schema(self, value):
      self.df_reader = callBigDlFunc(
          self.bigdl_type, "schema", self.df_reader, value
      )
      return self
  
imports: from bigdl.ppml.api import *
  from bigdl.ppml.utils.log4Error import *
  from enum import Enum
  from pyspark.sql import SparkSession
  from pyspark.ml.wrapper import JavaParams
label_desc: Use image node_id 2 for calling the EncryptedDataFrameReader obj's underlying member method code with example usage: obj.schema(value) and returns: self