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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def can_map_ipa_string(self, ipa_string):
 """ Return ``True`` if the mapper can map all the IPA characters in the given IPA string. :param IPAString ipa_string: the IPAString to be parsed :rtype: bool """

        canonical = [(c.canonical_representation, ) for c in ipa_string]
        split = split_using_dictionary(canonical, self, self.max_key_length, single_char_parsing=False)
        for sub in split:
            if not sub in self.ipa_canonical_representation_to_mapped_str:
                return False
        return True