class_docstr: WAV encoder based on Gstreamer
class_docstr_tok: ["WAV","encoder","based","on","Gstreamer"]
code: def set_metadata(self, metadata):
      # TODO
      pass
  
file_path: TimeSide/timeside/plugins/encoder/wav.py
imports: from timeside.core import implements, interfacedoc
  from timeside.core.encoder import GstEncoder
  from timeside.core.api import IEncoder
label_desc: Use image node_id 7 for calling the WavEncoder obj's underlying member method code with example usage: obj.set_metadata(metadata) without return types