class_docstr: a fairseq wrapper of model built by `task`.
code: def build_model(cls, args, task):
      return FairseqMMModel(task.mmtask.model)
  
imports: from fairseq.models import BaseFairseqModel, register_model, register_model_architecture
label_desc: Use image node_id 1 for calling the FairseqMMModel obj's underlying member method code with example usage: obj.build_model(cls, args, task) and returns: FairseqMMModel