use python f5-sdk:
from f5.bigip import ManagementRoot
mgmt = ManagementRoot('192.168.5.108', 'admin', 'xt32112300')
show_arp = "tmsh -c 'cd /Common/; show net arp'"
a = mgmt.tm.util.bash.exec_cmd('run', utilCmdArgs='-c "{}"'.format(show_arp))
print(a.commandResult)
python running result:
--------------------------------------------------------------------------------
Net::Arp
Name Address HWaddress Vlan Expire-in-sec Status
--------------------------------------------------------------------------------
172.16.10.2 172.16.10.2 00:0c:29:73:5d:8d /Common/vlan-internal 208 resolved