code: def pretrained(self):
      return self.pretrained_encoder is not None
  
imports: import logging
  import math
  import os
  import torch
  import torch.nn
  import torch.nn.functional
  from fairseq import checkpoint_utils
  from fairseq.incremental_decoding_utils import with_incremental_state
  from fairseq.models import CompositeEncoder, FairseqDecoder, FairseqEncoder, FairseqEncoderDecoderModel, register_model, register_model_architecture
  from fairseq.modules import DownsampledMultiHeadAttention, FairseqDropout, GradMultiply, LayerNorm, LearnedPositionalEmbedding, LinearizedConvolution
label_desc: Use image node_id 5 for calling the FConvModelSelfAtt obj's underlying member method code with example usage: obj.pretrained() and returns: unknown