class_docstr: This interesting layer produces an MVNDiag via affine transformation.
class_docstr_tok: ["This","interesting","layer","produces","an","MVNDiag","via","affine","transformation","."]
code: def bias(self):
      return self._bias
  
imports: import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import independent
  from tensorflow_probability.python.distributions import normal
  from tensorflow_probability.python.experimental import nn
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 3 for calling the AffineMeanFieldNormal obj's underlying member method code with example usage: obj.bias() and returns: self