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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 reconfigure_resolver():
 """ Reset the resolver configured for this thread to a fresh instance. This essentially re-reads the system-wide resolver configuration. If a custom resolver has been set using :func:`set_resolver`, the flag indicating that no automatic re-configuration shall take place is cleared. """


    global _state
    _state.resolver = dns.resolver.Resolver()
    _state.overridden_resolver = False