code: def decode_escapes(text):
      r"""
      Decode backslashed escape sequences, including \\x, \\u, and \\U character
      references, even in the presence of other Unicode.
  
      This function has to be called specifically. It's not run automatically by
      ftfy, because escaped text is not necessarily a mistake, and there is no
      way to distinguish when it is.
  
      This is what Python's "string-escape" and "unicode-escape" codecs were
      meant to do, but in contrast, this actually works. It will decode the
      string exactly the same way that the Python interpreter decodes its string
      literals.
  
          >>> factoid = '\\u20a1 is the currency symbol for the colón.'
          >>> print(factoid[1:])
          u20a1 is the currency symbol for the colón.
          >>> print(decode_escapes(factoid))
          ₡ is the currency symbol for the colón.
  
      Even though Python itself can read string literals with a combination of
      escapes and literal Unicode -- you're looking at one right now -- the
      "unicode-escape" codec doesn't work on literal Unicode. (See
      http://stackoverflow.com/a/24519338/773754 for more details.)
  
      Instead, this function searches for just the parts of a string that
      represent escape sequences, and decodes them, leaving the rest alone. All
      valid escape sequences are made of ASCII characters, and this allows
      "unicode-escape" to work correctly.
      """
  
      def decode_match(match):
          "Given a regex match, decode the escape sequence it contains."
          return codecs.decode(match.group(0), "unicode-escape")
  
      return ESCAPE_SEQUENCE_RE.sub(decode_match, text)
  
imports: import codecs
  import html
  import re
  import warnings
  import ftfy
  from ftfy.chardata import ALTERED_UTF8_RE, C1_CONTROL_RE, CONTROL_CHARS, DOUBLE_QUOTE_RE, HTML_ENTITIES, HTML_ENTITY_RE, LIGATURES, LOSSY_UTF8_RE, SINGLE_QUOTE_RE, UTF8_DETECTOR_RE, WIDTH_MAP
  from ftfy.badness import is_bad
label_desc: Use image node_id 15 for calling a global function with example usage: decode_escapes(text) and returns: ESCAPE_SEQUENCE_RE, codecs