Type error thrown in TS when SubschemaConfig assigned to BatchDelegateOptions.schema

[fahadbillah]

When trying to config batchDelegate by assigning SubschemaConfig to BatchDelegateOptions.schema I'm getting following type error.

Type 'SubschemaConfig<any, any, any, Record<string, any>>' is not assignable to type 'GraphQLSchema | SubschemaConfig<any, any, any, Record<string, any>>'.

Check following code. I did similar config for delegateToSchema and assign SubschemaConfig to IDelegateToSchemaOptions.schema which works fine.

Any idea what's happening here? Thanks.

          thumbnails: {
            selectionSet: `{ keys }`,
            resolve(root, _args, context, info) {
              return batchDelegateToSchema({
                schema: schemaA,    // ***** throwing type error
                operation: 'query',
                fieldName: 'fieldA',
                key: root.id,
                argsFromKeys: (keys) => ({ keys }),
                context,
                info,
              });
            },
          },
          creator: {
            selectionSet: `{ id }`,
            resolve(root, _args, context, info) {
              return delegateToSchema({
                schema: schemaB,    // ***** OK
                operation: 'query',
                fieldName: 'fieldB',
                args: { id: root.id },
                context,
                info,
              });
            },
          },