Does your field not look something like this? type Foo = object `type`: int Run
If this doesn't work, I believe this should: type Foo = object typeField {.importc: "type".}: int Run
Does your field not look something like this? type Foo = object `type`: int Run
If this doesn't work, I believe this should: type Foo = object typeField {.importc: "type".}: int Run