struct StructSingleton {
    singleton;
}

struct StructWithBool {
    field a: Bool;
    field b: Bool;
}

struct StructWithInt8 {
    field a: Int8;
    field b: Int8;
}

struct StructWithInt32 {
    field a: Int32;
    field b: Int32;
}

struct StructWithInt64 {
    field a: Int64;
    field b: Int64;
}

struct StructWithString {
    field a: String;
    field b: String;
}

struct StructWithStruct {
    field inner: StructWithInt32;
    field c: Int32;
}

struct StructWithList {
    field a: List[Int64];
    field b: List[StructWithInt32];
}

struct StructWithOption {
    field a: Option[Int64];
    field b: Option[StructWithInt32];
}

enum EnumWithVariants {
    variant zero;
    variant one;
    variant two;
}

struct StructWithEnum {
    field inner: EnumWithVariants;
    field c: Int32;
}

sum SumWithVariants {
    variant VariantOne;
    variant VariantTwo;
}

struct VariantOne {
    field a: Int32;
}

struct VariantTwo {
    field a: Int64;
}

sum SumWithBoxedVariants {
    variant VariantOne box;
    variant VariantTwo box;
}

struct StructWithSum {
    field inner: SumWithVariants;
    field b: Int32;
}

struct StructWithListOfShared {
    field inner: List[Shared[StructWithInt32]];
}

struct StructWithDifferentSharedTypes {
    field a: Shared[StructWithInt32];
    field b: Shared[StructWithInt64];
    field c: Shared[StructWithInt32];
}

struct StructWithSharedSumAndVariant {
    field a: Shared[SumWithVariants];
    field b: Shared[VariantOne];
}