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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_instance_private_ip_from_route(instance, route):
 """ Find the private IP and ENI of an instance that's pointed to in a route. Returns (ipaddr, eni) tuple. """

    ipaddr = None
    for eni in instance.interfaces:
        if eni.id == route.interface_id:
            ipaddr = eni.private_ip_address
            break
    return ipaddr, eni if ipaddr else None