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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def get_pr_info(requester, reponame, number):
    "Returns the PullRequest as a PRInfo object"
    resp = requester.get(
        'https://api.github.com/repos/%s/pulls/%s' % (reponame, number))
    return PRInfo(resp.json())