Changelog

3.76.0

(feat): Add support for SSE discriminator context with discriminatorContext field in IR. Supports “data” (default) for discriminators within union data and “protocol” for SSE protocol-level discriminators, such as event.

“data”-context discrimination :

event: message
data: { "type": "completion", "content": "Hello!" }
event: message
data: { "type": "error", message: "Something went wrong!" }

“protocol”-context discrimination (use x-fern-discriminator-context: protocol):

event: completion
data: { "content": "Hello!" }
event: error
data: { "message": "Something went wrong!" }

Example OpenAPI usage:

1
SseEvent:
2
  oneOf:
3
    - $ref: '#/components/schemas/CompletionEvent'
4
    - $ref: '#/components/schemas/ErrorEvent'
5
  discriminator:
6
    propertyName: event
7
    x-fern-discriminator-context: protocol

3.75.0

(chore): Remove deprecated V1 python-docs navigation item. Use the library navigation item with libraries config instead. See the library docs migration guide for details.