def decode_call(self, call):
<EOL>if call is None:<EOL><INDENT>return None<EOL><DEDENT>itokens = call.split(self._callables_separator)<EOL>odict = {}<EOL>for key, value in self._clut.items():<EOL><INDENT>if value in itokens:<EOL><INDENT>odict[itokens[itokens.index(value)]] = key<EOL><DEDENT><DEDENT>return self._callables_separator.join([odict[itoken] for itoken in itokens])<EOL>
Replace callable tokens with callable names.

:param call: Encoded callable  name
:type  call: string

:rtype: string