code: def switch_stream(self, stream):
      self._stream = stream
  
imports: import struct
  from avro.io import AvroTypeException, BinaryDecoder, BinaryEncoder, DatumReader, DatumWriter, SchemaResolutionException, Validate
label_desc: Use image node_id 2 for calling the FlinkAvroBufferWrapper obj's underlying member method code with example usage: obj.switch_stream(stream) without return types