code: def decode(self, z):
      z = self.post_quant_conv(z)
      dec = self.decoder(z)
      return dec
  
imports: import numpy
  import paddle
  import paddle.nn
  from ..configuration_utils import ConfigMixin
  from ..configuration_utils import register_to_config
  from .unet_blocks import get_down_block
  from .unet_blocks import get_up_block
  from .unet_blocks import UNetMidBlock2D
label_desc: Use image node_id 3 for calling the AutoencoderKL obj's underlying member method code with example usage: obj.decode(z) and returns: dec