Type Guard for Effect Returning Function

function isErrorResponse(response: unknown) {
      return Effect.gen(function* () {
        const result = Schema.decodeUnknownEither(ErrorResponseSchema)(response)
        if (Either.isRight(result)) {
          return true
        }

        return false
      })
    }

function isErrorResponse(response: unknown) {
      return Effect.gen(function* () {
        const result = Schema.decodeUnknownEither(ErrorResponseSchema)(response)
        if (Either.isRight(result)) {
          return true
        }

        return false
      })
    }