code: def speaker2(prevalence, prior):
      utterance = utterance_prior()
      wL1 = listener1(utterance, prior)
      pyro.sample("wL1_score", wL1, obs=prevalence)
      return utterance
  
file_path: pyro/examples/rsa/generics.py
imports: import argparse
  import collections
  import numbers
  import torch
  from search_inference import HashingMarginal, Search, memoize
  import pyro
  import pyro.distributions
  import pyro.poutine
label_desc: Use image node_id 10 for calling a global function with example usage: speaker2(prevalence, prior) and returns: utterance