},
                        "required": True,
                    },
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",

// Init represents the structure.
type Init struct {
	done uint32
	m    sync.Mutex
}

// Do is similar to sync.Once.Do - makes one successful
// call to the function. ie, it invokes the function
// if it is not successful yet.
func (l *Init) Do(f func() error) error {
	if atomic.LoadUint32(&l.done) == 0 {
		return l.do(f)
	}
	return nil
}

func (l *Init) do(f func() error) error {

                            "in": "query",
                        }
                    ],
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",

        * At this point is that the API will somehow send a POST request to the
            external API with the notification of the invoice event
            (e.g. "payment successful").
    """
    # Send the invoice, collect the money, send the notification (the callback)
    return {"msg": "Invoice received"}


app.include_router(subrouter, callbacks=events_callback_router.routes)

                    "responses": {
                        "200": {
                            "content": {"application/json": {"schema": {}}},
                            "description": "Successful Response",
                        }
                    },
                    "summary": "A",
                }
            },
            "/b": {
                "get": {

        HandleGuid guid = new HandleGuid();

        // Create handle info with empty file ID (will be populated after successful create response)
        HandleInfo info = new HandleInfo(path, guid, new byte[16], type, timeout, leaseKey);

        lock.writeLock().lock();
        try {
            handles.put(path, info);

    "info": {"title": "FastAPI", "version": "0.1.0"},
    "paths": {
        "/app": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {"application/json": {"schema": {}}},
                    }
                },
                "summary": "Read Main",
                "operationId": "read_main_app_get",

          in: query
          description: Callback name for using JSONP
          required: false
          schema:
            type: string
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                type: object
                properties:
                  q:
                    type: string

                        },
                        "required": True,
                    },
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",

                                    }
                                }
                            },
                        },
                        "200": {"description": "Successful Response"},
                    },
                    "summary": "A",
                    "operationId": "a_a_get",
                }
            },
            "/b": {
                "get": {