docs: def find_related_modules(package, related_name_re='.+',
                           ignore_exceptions=False):
      """Find matching modules using a package and a module name pattern."""
      warnings.warn('find_related_modules has been deprecated.',
                    DeprecationWarning)
      package_elements = package.rsplit(".", 1)
      try:
          if len(package_elements) == 2:
              pkg = __import__(package_elements[0], globals(), locals(), [
                               package_elements[1]])
              pkg = getattr(pkg, package_elements[1])
          else:
              pkg = __import__(package_elements[0], globals(), locals(), [])
          pkg_path = pkg.__path__
      except AttributeError:
          return []
  
      # Find all modules named according to related_name
      p = re.compile(related_name_re)
      modules = []
  
      for name in find_modules(package, include_packages=True):
          if p.match(name.split('.')[-1]):
              try:
                  modules.append(import_string(name, silent=ignore_exceptions))
              except Exception as e:
                  if not ignore_exceptions:
                      raise e
  
      return modules