---
title: "POST /call/FnLiteralUnionClassInputOutput"
method: POST
path: "/call/FnLiteralUnionClassInputOutput"
---

# POST /call/FnLiteralUnionClassInputOutput

`POST /call/FnLiteralUnionClassInputOutput`

## Request body

- object
  - `input` union, required
    - LiteralClassOne
      - `prop` string, required
    - LiteralClassTwo
      - `prop` string, required
  - `__baml_options__` BamlOptions
    - `client_registry` object, required
      - `clients` ClientProperty[], required
        - `name` string, required
        - `provider` string, required
        - `options` object, required
      - `primary` string

## Response `200`

Successful operation

- union
  - LiteralClassOne
    - `prop` string, required
  - LiteralClassTwo
    - `prop` string, required

---

[API](https://skmtc.net/boundaryml/apis/baml-cli-serve.md) · [All operations](https://skmtc.net/boundaryml/apis/baml-cli-serve/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/boundaryml/baml-cli-serve/versions/de0222076ef2/schema)