code: def get_long_description():
      with codecs.open(README_FILE, "rt") as buff:
          return buff.read()
  
file_path: arviz/setup.py
imports: import codecs
  import os
  import re
  import setuptools
  from setuptools import find_packages, setup
  from setuptools.command.develop import develop
  from setuptools.command.install import install
label_desc: Use image node_id 4 for calling a global function with example usage: get_long_description() and returns: buff