@hepnames2marc.over('<STR_LIT>', '<STR_LIT>')<EOL>@utils.for_each_value<EOL>def email_addresses2marc(self, key, value):
m_or_o = '<STR_LIT:m>' if value.get('<STR_LIT>') else '<STR_LIT:o>'<EOL>element = {<EOL>m_or_o: value.get('<STR_LIT:value>')<EOL>}<EOL>if value.get('<STR_LIT>'):<EOL><INDENT>return element<EOL><DEDENT>else:<EOL><INDENT>self.setdefault('<STR_LIT>', []).append(element)<EOL>return None<EOL><DEDENT>
Populate the 595 MARCXML field.

    Also populates the 371 field as a side effect.