class_docstr: A `callable` `tf.Module`.
code: def summary(self):
      return nn_util_lib.variables_summary(self.variables, self.name)
  
imports: import sys
  import tensorflow.compat.v2
  from tensorflow_probability.python.experimental.nn.util import utils
  from tensorflow_probability.python.internal import name_util
label_desc: Use image node_id 4 for calling the Layer obj's underlying member method code with example usage: obj.summary() and returns: nn_util_lib