[Python] Set ttp variable based on previous line

I'm trying to bring information from Cisco targets import and export but the variable doesn't change! Can you help me?

I tried this:

Config from Cisco

vrf teste
address-family ipv4 unicast
import route-target
11:11
22:22
!
export route-target
33:33
44:44
55:55
!
!
!


TTP template:

<group name="VRFS.{{ ip_vrf }}">
vrf {{ ip_vrf }}

import route-target{{ _start_ | _exact_ }}
{{ rt_import | _line_ | joinmatches(', ') }}
!{{ _end_ | _exact_ }}

export route-target{{ _start_ | _exact_ }}
{{ rt_export | _line_ | joinmatches(', ') }}
!{{ _end_ | _exact_ }}

</group>


=============================================

Incorrect result, both are "rt_import":


[
{
"VRFS": {
"test": [
{
"rt_import": "11:11, 22:22"
},
{
"rt_import": "33:33, 44:44, 55:55"
}
]
}
}
]

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