my_xschem/xschem/xschem/symbols/devices/netlist.sym

v {xschem version=2.9.5_RC5 file_version=1.1}
G {type=netlist_commands
template="name=s1 value=blabla"
format="
@value
"}
V {}
S {}
E {}
L 4 0 -10 70 -10 {}
L 4 0 -10 0 10 {}
T {NETLIST} 5 -25 0 0 0.3 0.3 {}
T {@value} 15 -5 0 0 0.3 0.3 {}