class_docstr: Base class for speaker models.
class_docstr_tok: ["Base","class","for","speaker","models","."]
docstr: Stub function. 
docstr_tok: ["Stub","function","."]
code: def model(self, feats, labels):
      """Stub function."""
      return NotImplementedError("Stub function.")
  
imports: import math
  from absl import logging
  import delta.compat
  import tensorflow.keras.layers
  from delta import utils
  from delta.layers import common_layers
  from delta.models.base_model import RawModel
  from delta.utils.register import registers
  from delta.utils.loss.loss_utils import arcface_loss
  from delta.utils.hparam import HParams
label_desc: Use image node_id 4 for calling the SpeakerBaseRawModel obj's underlying member method code with example usage: obj.model(feats, labels) and returns: NotImplementedError