Returns the FQDN of the given learning machine.

def _machine_fqdn(machine):
    """Returns the FQDN of the given learning machine.
    """
    from acorn.logging.decoration import _fqdn
    if hasattr(machine, "__class__"):
        return _fqdn(machine.__class__, False)
    else: # pragma: no cover
        #See what FQDN can get out of the class instance.
        return _fqdn(machine)