Sample OpenAPI specification that uses anyOf in the request parameters

openapi.yml

openapi: 3.0.0
servers:
  - url: 'http://localhost:8080'

info:
  version: 0.0.1
  title: ratbag-emu
  license:
    name: MIT
    url: 'https://raw.githubusercontent.com/libratbag/ratbag-emu/master/LICENSE'

paths:
  '/devices/{device_id}/phys_props/dpi/{dpi_id}':
    get:
      operationId: ratbag_emu.server.get_dpi
      parameters:
        - name: device_id
          in: path
          required: true
          schema:
            type: integer
            format: int32
        - name: dpi_id
          in: path
          required: true
          schema:
            anyOf:
              - type: integer
                format: int32
              - type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: integer
                format: int32
        '404':
          description: Device not found
    put:
      summary: Changes the value of the specified DPI setting
      operationId: ratbag_emu.server.set_dpi
      parameters:
        - name: device_id
          in: path
          required: true
          schema:
            type: integer
            format: int32
        - name: dpi_id
          in: path
          required: true
          schema:
            anyOf:
              - type: integer
                format: int32
              - type: string
      responses:
        '200':
          description: OK
        '404':
          description: Device not found