Description

It seems that a change from #21464 broke the oneOf sample. Typescript now throw an error because of the last condition of the TestArrayResponseToJSONTyped method:
TS2339: Property every does not exist on type never

openapi-generator version

7.15.0

OpenAPI declaration file content or url

https://github.com/OpenAPITools/openapi-generator/blob/master/samples/client/petstore/typescript-fetch/builds/oneOf/models/TestArrayResponse.ts#L84

Generation Details

Steps to reproduce

Try compiling the oneOf sample with Typescript