def update_collaboration(self):
for field in record_get_field_instances(self.record, '<STR_LIT>'):<EOL><INDENT>subs = field_get_subfield_instances(field)<EOL>for idx, (key, value) in enumerate(subs[:]):<EOL><INDENT>if key == '<STR_LIT:5>':<EOL><INDENT>subs.pop(idx)<EOL><DEDENT>elif value.startswith('<STR_LIT>'):<EOL><INDENT>subs.pop(idx)<EOL><DEDENT><DEDENT>if len(subs) == <NUM_LIT:0>:<EOL><INDENT>record_delete_field(self.record,<EOL>tag='<STR_LIT>',<EOL>field_position_global=field[<NUM_LIT:4>])<EOL><DEDENT><DEDENT>
710 Collaboration.