class_docstr: Api for metadata storage.
docstr: Fetch all trials metadata in the database so far.
code: def get_completed_trials(self):
      """Fetch all trials metadata in the database so far."""
  
file_path: model_search/model_search/metadata/metadata.py
imports: import abc
label_desc: Use image node_id 3 for calling the MetaData obj's underlying member method code with example usage: obj.get_completed_trials() without return types