How can I write general TypeGuard for GraphQL unions?I think if you expect to be using discriminated union types, then you will get better behavior if your user-defined type guard returns a type like val is Extract<DiscriminatedUnionType, {discriminant: LiteralDiscriminant}> instead of intersections like val is DiscriminatedUnionType & {discriminant: LiteralDiscriminant} (or the one with Omit<DiscriminatedUnionType , "discriminant"> & {discriminant:
Language plugin support. (#2293) · facebook/relay@af35b67
GitHub - adwd/my-apollo-app
