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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 find_user(session, username):
 """Find user by name - returns user ID."""

    resp = _make_request(session, FIND_USER_URL, username)
    if not resp:
        raise VooblyError('user not found')
    try:
        return int(resp[0]['uid'])
    except ValueError:
        raise VooblyError('user not found')