public function follow(array $options = [])
    {
        $url = $this->expand($options);
        try {
            return new CollectionDocJson($url, $this->_auth);
        } catch (NotFoundException $e) {
            return null;
        }
    }
public function follow(array $options = [])
    {
        $url = $this->expand($options);
        try {
            return new CollectionDocJson($url, $this->_auth);
        } catch (NotFoundException $e) {
            return null;
        }
    }
public function follow ( array $ options = [ ] ) { $ url = $ this -> expand ( $ options ) ; try { return new CollectionDocJson ( $ url , $ this -> _auth ) ; } catch ( NotFoundException $ e ) { return null ; } }
Follow the link to retrieve a doc

@param array $options array of href-template params
@return CollectionDocJson a loaded doc
Follow the link to retrieve a doc