repo(object) {
        // @ts-ignore `repository` is not always present in this.payload
        const repo = this.payload.repository;
        if (!repo) {
            throw new Error("context.repo() is not supported for this webhook event.");
        }
        return Object.assign({
            owner: repo.owner.login,
            repo: repo.name,
        }, object);
    }
Return the `owner` and `repo` params for making API requests against a
repository.

```js
const params = context.repo({path: '.github/config.yml'})
// Returns: {owner: 'username', repo: 'reponame', path: '.github/config.yml'}
```

@param object - Params to be merged with the repo params.