code: def get_description_type(path=PKG_DESCRIBE):
      """
      Returns the long_description_content_type based on the extension of the
      package describe path (e.g. .txt, .rst, or .md).
      """
      _, ext = os.path.splitext(path)
      return {
          ".rst": "text/x-rst",
          ".txt": "text/plain",
          ".md": "text/markdown",
      }[ext]
  
file_path: yellowbrick/setup.py
imports: import os
  import codecs
  from setuptools import setup
  from setuptools import find_packages
label_desc: Use image node_id 4 for calling a global function with example usage: get_description_type(path) and returns: dict