BOOL = 0 | The slot contains Boolean. |
NUM = 1 | The slot contains Number. |
FOREIGN = 2 | The slot contains Xojo Object. |
LIST = 3 | The slot contains Wren list. |
MAP = 4 | The slot contains Wren map. |
NULL = 5 | The slot contains NULL - no value representation. |
STRING = 6 | The slot contains String. |
UNKNOWN = 7 | The slot contains object which is of a type that isn't accessible by the C API. |