code: def hash(value, arg):
      
      arg = str(arg).lower()
      if sys.version_info >= (3,0):
          value = value.encode("utf-8")
      if not arg in get_available_hashes():
          raise TemplateSyntaxError("The %s hash algorithm does not exist. Supported algorithms are: %" % (arg, get_available_hashes()))
      try:
          f = getattr(hashlib, arg)
          hashed = f(value).hexdigest()
      except Exception:
          raise ValueError("The %s hash algorithm cannot produce a hex digest. Ensure that OpenSSL is properly installed." % arg)
      return hashed
docs: Returns a hex-digest of the passed in value for the hash algorithm given.