Pygithub: ブランチオブジェクトにほとんどの属性とメソッドがありません

Github Enterpriseで自動化できることを期待して、このライブラリをいじっています。 私が最初に行う必要があることの1つは、リポジトリにブランチ保護を設定することです。 ただし、テストリポジトリ（すでにブランチ保護が設定されている）からブランチオブジェクトを開始すると、割り当てられた属性は「名前」のみであり、ドキュメントに記載されているほとんどのメソッドはに存在しません。物体：

import github
github.enable_console_debug_logging()
Github = github.Github

Github("myuser",
'mycreds',
base_url="https://ghe.workworkwork.com/api/v3")

master = g.get_user("myuser").get_repo('cookbook1').get_branch('master')
print master
print master.protection_url

出力：

...
GET https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/branches/master {'Authorization': 'Basic (login and password removed)', 'User-Agent': 'PyGithub/Python'} None ==> 200 {'status': '200 OK', 'content-length': '2925', 'x-github-media-type': 'github.v3', 'x-content-type-options': 'nosniff', 'content-security-policy': "default-src 'none'", 'access-control-expose-headers': 'ETag, Link, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval', 'x-github-request-id': '0ec6f4e8-2355-41dc-859d-0e7076a294b1', 'strict-transport-security': 'max-age=31536000; includeSubdomains', 'vary': 'Accept, Authorization, Cookie, X-GitHub-OTP', 'server': 'GitHub.com', 'access-control-allow-origin': '*', 'etag': '"965449c848ed3319d7e028c2a587f414"', 'x-xss-protection': '1; mode=block', 'cache-control': 'private, max-age=60, s-maxage=60', 'date': 'Thu, 16 Aug 2018 23:41:19 GMT', 'x-frame-options': 'deny', 'x-oauth-scopes': 'admin:org_hook, admin:pre_receive_hook, admin:repo_hook, repo', 'content-type': 'application/json; charset=utf-8', 'x-accepted-oauth-scopes': ''} {"name":"master","commit":{"sha":"3548233b67c8ec4cad703ff947fa0ba022df7c66","commit":{"author":{"name":"Garrett Anderson","email":"[email protected]","date":"2018-08-16T18:44:44Z"},"committer":{"name":"GitHub Enterprise","email":"[email protected]","date":"2018-08-16T18:44:44Z"},"message":"Merge pull request #8 from myuser/newfork\n\nwhat","tree":{"sha":"44b3a300094b2ccbbfb79ea7df5f82e627c12b42","url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/git/trees/44b3a300094b2ccbbfb79ea7df5f82e627c12b42"},"url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/git/commits/3548233b67c8ec4cad703ff947fa0ba022df7c66","comment_count":0},"url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/commits/3548233b67c8ec4cad703ff947fa0ba022df7c66","html_url":"https://ghe.workworkwork.com/myuser/cookbook1/commit/3548233b67c8ec4cad703ff947fa0ba022df7c66","comments_url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/commits/3548233b67c8ec4cad703ff947fa0ba022df7c66/comments","author":{"login":"myuser","id":593,"avatar_url":"https://ghe.workworkwork.com/avatars/u/593?","gravatar_id":"","url":"https://ghe.workworkwork.com/api/v3/users/myuser","html_url":"https://ghe.workworkwork.com/myuser","followers_url":"https://ghe.workworkwork.com/api/v3/users/myuser/followers","following_url":"https://ghe.workworkwork.com/api/v3/users/myuser/following{/other_user}","gists_url":"https://ghe.workworkwork.com/api/v3/users/myuser/gists{/gist_id}","starred_url":"https://ghe.workworkwork.com/api/v3/users/myuser/starred{/owner}{/repo}","subscriptions_url":"https://ghe.workworkwork.com/api/v3/users/myuser/subscriptions","organizations_url":"https://ghe.workworkwork.com/api/v3/users/myuser/orgs","repos_url":"https://ghe.workworkwork.com/api/v3/users/myuser/repos","events_url":"https://ghe.workworkwork.com/api/v3/users/myuser/events{/privacy}","received_events_url":"https://ghe.workworkwork.com/api/v3/users/myuser/received_events","type":"User","site_admin":true},"committer":null,"parents":[{"sha":"067642113fe45ee77160ee28cafc4870f2c06b6a","url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/commits/067642113fe45ee77160ee28cafc4870f2c06b6a","html_url":"https://ghe.workworkwork.com/myuser/cookbook1/commit/067642113fe45ee77160ee28cafc4870f2c06b6a"},{"sha":"3a9479c605617a9035cd986a4bf77880ac5dde64","url":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/commits/3a9479c605617a9035cd986a4bf77880ac5dde64","html_url":"https://ghe.workworkwork.com/myuser/cookbook1/commit/3a9479c605617a9035cd986a4bf77880ac5dde64"}]},"_links":{"self":"https://ghe.workworkwork.com/api/v3/repos/myuser/cookbook1/branches/master","html":"https://ghe.workworkwork.com/myuser/cookbook1/tree/master"}}

Branch(name="master")

AttributeError: 'Branch' object has no attribute 'protection_url'

そこにも方法はありません：

print master.get_required_status_checks()
OUTPUT:
AttributeError: 'Branch' object has no attribute 'get_required_status_checks'

またはこの属性：

print master.protection
OUTPUT:
return self._protected.value
AttributeError: 'Branch' object has no attribute '_protected'

オブジェクトは次のようになります。

print dir(master)
OUTPUT:
['CHECK_AFTER_INIT_FLAG', '_GithubObject__makeSimpleAttribute', '_GithubObject__makeSimpleListAttribute', '_GithubObject__makeTransformedAttribute', '__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_commit', '_completeIfNeeded', '_headers', '_initAttributes', '_makeBoolAttribute', '_makeClassAttribute', '_makeDatetimeAttribute', '_makeDictAttribute', '_makeDictOfStringsToClassesAttribute', '_makeIntAttribute', '_makeListOfClassesAttribute', '_makeListOfIntsAttribute', '_makeListOfListOfStringsAttribute', '_makeListOfStringsAttribute', '_makeStringAttribute', '_makeTimestampAttribute', '_name', '_parentUrl', '_rawData', '_requester', '_storeAndUseAttributes', '_useAttributes', 'commit', 'contexts', 'enforcement_level', 'etag', 'get__repr__', 'last_modified', 'name', 'protected', 'raw_data', 'raw_headers', 'setCheckAfterInitFlag']

オブジェクトが正しく作成されていないようです。