def to_record_per_alt(self):
record_list = []<EOL>for alt in self.ALT:<EOL><INDENT>record_list.append(copy.copy(self))<EOL>record_list[-<NUM_LIT:1>].ALT = [alt]<EOL><DEDENT>return record_list<EOL>
Returns list of vcf_records. One per variant
        in the ALT column. Does not change INFO/FORMAT etc columns, which
        means that they are now broken