code: def get_unicode_from_response(r):
      
      warnings.warn((
          'In requests 3.0, get_unicode_from_response will be removed. For '
          'more information, please see the discussion on issue #2266. (This'
          ' warning should only appear once.)'),
          DeprecationWarning)
  
      tried_encodings = []
  
      # Try charset from content-type
      encoding = get_encoding_from_headers(r.headers)
  
      if encoding:
          try:
              return str(r.content, encoding)
          except UnicodeError:
              tried_encodings.append(encoding)
  
      # Fall back:
      try:
          return str(r.content, encoding, errors='replace')
      except TypeError:
          return r.content
docs: Returns the requested content back in unicode.
  
      :param r: Response object to get unicode content from.
  
      Tried:
  
      1. charset from content-type
      2. fall back and replace all unicode characters
  
      :rtype: str