meh.json

{
  "openapi": "3.0.0",
  "info": {
    "description": "This is a sample server Petstore server.",
    "version": "1.0.0",
    "title": "Swagger Petstore",
    "termsOfService": "http://swagger.io/terms/",
    "contact": {
      "email": "apiteam@swagger.io"
    },
    "license": {
      "name": "Apache 2.0",
      "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
    }
  },
  "paths": {
    "/pets": {
      "patch": {
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "oneOf": [
                  {
                    "$ref": "#/components/schemas/Cat"
                  },
                  {
                    "$ref": "#/components/schemas/Dog"
                  }
                ]
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Updated"
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Dog": {
        "type": "object",
        "properties": {
          "bark": {
            "type": "boolean"
          },
          "breed": {
            "type": "string",
            "enum": [
              "Dingo",
              "Husky",
              "Retriever",
              "Shepherd"
            ]
          }
        }
      },
      "Cat": {
        "type": "object",
        "properties": {
          "hunts": {
            "type": "boolean"
          },
          "age": {
            "type": "integer"
          }
        }
      }
    }
  }
}