"""Return the name(s) of the physical network device(s) associated with pif.
For a VLAN PIF, the physical devices are the VLAN slave's physical devices.
For a bond master PIF, the physical devices are the bond slaves.
For a non-VLAN, non-bond master PIF, the physical device is the PIF itself.
"""
"""Return the name(s) of the physical network device(s) associated with pif.
For a VLAN PIF, the physical devices are the VLAN slave's physical devices.
For a bond master PIF, the physical devices are the bond slaves.
For a non-VLAN, non-bond master PIF, the physical device is the PIF itself.
"""