@hep2marc.over('<STR_LIT>', '<STR_LIT>')<EOL>@utils.for_each_value<EOL>def _private_notes2marc(self, key, value):
def _is_from_hal(value):<EOL><INDENT>return value.get('<STR_LIT:source>') == '<STR_LIT>'<EOL><DEDENT>if not _is_from_hal(value):<EOL><INDENT>return {<EOL>'<STR_LIT>': value.get('<STR_LIT:source>'),<EOL>'<STR_LIT:a>': value.get('<STR_LIT:value>'),<EOL>}<EOL><DEDENT>self.setdefault('<STR_LIT>', []).append({'<STR_LIT:a>': value.get('<STR_LIT:value>')})<EOL>
Populate the ``595`` MARC key.

    Also populates the `595_H` MARC key through side effects.