(self)
| 174 | self.__attrs["start"] = value |
| 175 | |
| 176 | def to_xml(self) -> Element: |
| 177 | attrib = dict() |
| 178 | for key, value in self.__attrs.items(): |
| 179 | if value is not None: |
| 180 | attrib[key] = str(value).lower() |
| 181 | parent = super().to_xml() |
| 182 | SubElement(parent, "Boolean", attrib) |
| 183 | |
| 184 | return parent |
| 185 | |
| 186 | |
| 187 | class String(ScalarVariable): |