:calls: `GET /repos/:owner/:repo/git/blobs/:sha <http://developer.github.com/v3/git/blobs>`_
        :param sha: string
        :rtype: :class:`github.GitBlob.GitBlob`

def get_git_blob(self, sha):
        """
        :calls: `GET /repos/:owner/:repo/git/blobs/:sha <http://developer.github.com/v3/git/blobs>`_
        :param sha: string
        :rtype: :class:`github.GitBlob.GitBlob`
        """
        assert isinstance(sha, (str, unicode)), sha
        headers, data = self._requester.requestJsonAndCheck(
            "GET",
            self.url + "/git/blobs/" + sha
        )
        return github.GitBlob.GitBlob(self._requester, headers, data, completed=True)