The list may not be up-to-date so the best way is to look for "x-" in the mustache templates.

(All examples are in YAML format)

To customize the method name, you can provide a different name in x-objc-operationId, e.g.

summary: Add a new pet to the store
description: ''
operationId: addPet
x-objc-operationId: CreateNewPet

A single Accepts value as the Feign API client needs a single value for Accepts header, e.g.

consumes:
  - application/json
  - application/xml
x-accepts: application/json

A single "Content-Type" value as the Feign API client needs a single value for Content-Type header, e.g.

produces:
  - application/xml
  - application/json
x-content-type: application/json

Each response may specify a unique x-responseId. rust-server will use this to name the corresponding enum variant in the code. e.g.

paths:
  /ping:
    get:
      responses:
        200:
          description: OK
          x-responseId: Pong