def get_branch(self, branch):
assert isinstance(branch, (str, unicode)), branch<EOL>headers, data = self._requester.requestJsonAndCheck(<EOL>"<STR_LIT:GET>",<EOL>self.url + "<STR_LIT>" + branch<EOL>)<EOL>return github.Branch.Branch(self._requester, headers, data, completed=True)<EOL>
:calls: `GET /repos/:owner/:repo/branches/:branch <http://developer.github.com/v3/repos>`_
:param branch: string
:rtype: :class:`github.Branch.Branch`