since не возвращает полную инфу по пользователю, 0 потому что примитивы не могут быть null.
{
"login": "josh",
"id": 137,
"avatar_url": "https://avatars.githubusercontent.com/u/137?v=3",
"gravatar_id": "",
"url": "https://api.github.com/users/josh",
"html_url": "https://github.com/josh",
"followers_url": "https://api.github.com/users/josh/followers",
"following_url": "https://api.github.com/users/josh/following{/other_user}",
"gists_url": "https://api.github.com/users/josh/gists{/gist_id}",
"starred_url": "https://api.github.com/users/josh/starred{/owner}{/repo}",
"subscriptions_url": "https://api.github.com/users/josh/subscriptions",
"organizations_url": "https://api.github.com/users/josh/orgs",
"repos_url": "https://api.github.com/users/josh/repos",
"events_url": "https://api.github.com/users/josh/events{/privacy}",
"received_events_url": "https://api.github.com/users/josh/received_events",
"type": "User",
"site_admin": true
},