using expect script to execute command on palo alto firewall

[lsd919]

Hello, I'm using the code below to get ha state on my palo alto firewall but the output is not ok, there is a loop one the command and extra output caracters.
I'm using it with ansible in this scenario: ansible connect to a jumthost that execute this expect script on the palo alto device

#!/usr/bin/expect
set send_human {.1 .3 1 .05 2}
set network_expect_instructions_prompt "@.*>"
set network_expect_instructions_exitcode_wrong_password "2"
set network_expect_instructions_time_to_sleep "3"
set network_expect_instructions_timeout "30"
set timeout "30"
set network_target_pass "$env(NETWORK_TARGET_PASS)"

# commands communes de connectivités
spawn ssh -o StrictHostKeyChecking=no user@paloalto

expect {
-re "Password:" {
if { 0==1 } { puts "prompt ok!!"}
send -h "$network_target_pass\r"
}
timeout {
puts "no password: prompt"
set exit_code 3
if { $exit_code!=0 } { exit $exit_code }
}

}

# commandes de l'instructions
puts "EXPECT_BEGIN\r"

expect {
-re "$network_expect_instructions_prompt" {
if { 0==1 } { puts "prompt ok!!"}
send -h "show high-availability state\r"
}
timeout {
puts "prompt $network_expect_instructions_prompt not found."
set exit_code 3
if { $exit_code!=0 } { exit $exit_code }
}

}
expect {
-re "$network_expect_instructions_prompt" {
if { 0==1 } { puts "prompt ok!!"}
send -h "exit\r"
}
timeout {
puts "prompt $network_expect_instructions_prompt not found."
set exit_code 3
if { $exit_code!=0 } { exit $exit_code }
}

}
puts "EXPECT_END\r"


Here is the output

user@paloalto> show high-availability state\r
\r\u001b[K\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000user@paloalto> show \r\u001b[K\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000user@paloalto> show high-availability \r\u001b[K\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000user@paloalto> show high-availability state \r\u001b[K\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000user@paloalto> show high-availability state \r