class_docstr: Avro Schema class contains Java org.apache.avro.Schema.
  
  .. versionadded:: 1.16.0
class_docstr_tok: ["Avro","Schema","class","contains","Java","org.apache.avro.Schema",".","..","versionadded",":",":","1.16.0"]
code: def __str__(self):
      if self._schema_string is None:
          self._schema_string = get_field_value(
              self._j_schema, "schema"
          ).toString()
      return self._schema_string
  
imports: from py4j.java_gateway import get_java_class, JavaObject, java_import
  from pyflink.common.io import InputFormat
  from pyflink.common.serialization import BulkWriterFactory, SerializationSchema, DeserializationSchema
  from pyflink.common.typeinfo import TypeInformation
  from pyflink.datastream.utils import ResultTypeQueryable
  from pyflink.java_gateway import get_gateway
  from pyflink.util.java_utils import get_field_value, load_java_class
label_desc: Use image node_id 2 for calling the AvroSchema obj's underlying member method code with example usage: obj.__str__() and returns: self