Variable $PrimitiveKindConst
$PrimitiveKind: $.Shape< | "bool" | "char" | "str" | "u8" | "u16" | "u32" | "u64" | "u128" | "u256" | "i8" | "i16" | "i32" | "i64" | "i128" | "i256", | "bool" | "char" | "str" | "u8" | "u16" | "u32" | "u64" | "u128" | "u256" | "i8" | "i16" | "i32" | "i64" | "i128" | "i256"> = ...