code: def kl(self, other=None):
      if self.deterministic:
          return jnp.array([0.0])
  
      if other is None:
          return 0.5 * jnp.sum(
              self.mean**2 + self.var - 1.0 - self.logvar,
              axis=[1, 2, 3],
          )
  
      return 0.5 * jnp.sum(
          jnp.square(self.mean - other.mean) / other.var
          + self.var / other.var
          - 1.0
          - self.logvar
          + other.logvar,
          axis=[1, 2, 3],
      )
  
imports: import math
  from functools import partial
  from typing import Tuple
  import flax
  import flax.linen
  import jax
  import jax.numpy
  from flax.core.frozen_dict import FrozenDict
  from ..configuration_utils import ConfigMixin, flax_register_to_config
  from ..utils import BaseOutput
  from .modeling_flax_utils import FlaxModelMixin
label_desc: Use image node_id 3 for calling the FlaxDiagonalGaussianDistribution obj's underlying member method code with example usage: obj.kl(other) and returns: unknown, jnp, unknown