class_docstr: This modification of :class:`AutoContinuous` is used internally in the
  :class:`SVGD` inference algorithm.
code: def get_posterior(self, *args, **kwargs):
      svgd_particles = pyro.param("svgd_particles", self._init_loc)
      return Delta(svgd_particles, event_dim=1)
  
imports: import math
  from abc import ABCMeta, abstractmethod
  import torch
  from torch.distributions import biject_to
  import pyro
  from pyro import poutine
  from pyro.distributions import Delta
  from pyro.distributions.util import copy_docs_from
  from pyro.infer.autoguide.guides import AutoContinuous
  from pyro.infer.autoguide.initialization import init_to_sample
  from pyro.infer.trace_elbo import Trace_ELBO
label_desc: Use image node_id 2 for calling the _SVGDGuide obj's underlying member method code with example usage: obj.get_posterior() and returns: Delta