an>, <span class='va'>p</span>, <span class='va'>ignore</span><span class='op'>)</span> <span class='fu'><a href='tfd_kl_divergence.html'>tfd_kl_divergence</a></span><span class='op'>(</span><span class='va'>q</span>, <span class='va'>p</span><span class='op'>)</span>,
  bias_posterior_fn <span class='op'>=</span> <span class='va'>tfp</span><span class='op'>$</span><span class='va'>layers</span><span class='op'>$</span><span class='va'>util</span><span class='op'>$</span><span class='fu'>default_mean_field_