Fix doc-comment for method exists on Object (#115)
Fix doc-comment for method exists on Object (#115)


googleapis/google-cloud-php,tmatsuo/google-cloud-php,googleapis/google-cloud-php,chingor13/google-cloud-php,chingor13/google-cloud-php,pvm1987/google-cloud-php,jdpedrie/google-cloud-php,jdpedrie/google-cloud-php,chingor13/google-cloud-php,googleapis/google-cloud-php,tmatsuo/google-cloud-php,jdpedrie/google-cloud-php,pvm1987/google-cloud-php