how to parse unbullet list / tree list?

[joycey97]

for a section inside an Infobox:

| ethnic_groups          = {{ublist |item_style=white-space:nowrap; |{{Tree list}}
*62.0% [[Singaporean]]
*9.1% [[Permanent residency in Singapore|Permanent resident]]
**71.1% Citizen/resident
*** 74.3% [[Chinese Singaporeans|Chinese]]
*** 13.5% [[Malay Singaporeans|Malay]]
*** 9.0% [[Indian Singaporeans|Indian]]
***3.2% [[Demographics of Singapore#Ethnic groups|Other]]
*28.9% [[Demographics of Singapore#Ethnic groups|Non-citizen/resident]]
{{Tree list/end}}
}}

how to use the package to parse this part to obtain:

62.0% Singaporean
9.1% Permanent resident
71.1% Citizen/resident
74.3% Chinese
13.5% Malay
9.0% Indian
3.2% Other
28.9% Non-citizen/resident

[JJMC89]

import mwparserfromhell

text = """{{infobox
| ethnic_groups          = {{ublist |item_style=white-space:nowrap; |{{Tree list}}
*62.0% [[Singaporean]]
*9.1% [[Permanent residency in Singapore|Permanent resident]]
**71.1% Citizen/resident
*** 74.3% [[Chinese Singaporeans|Chinese]]
*** 13.5% [[Malay Singaporeans|Malay]]
*** 9.0% [[Indian Singaporeans|Indian]]
***3.2% [[Demographics of Singapore#Ethnic groups|Other]]
*28.9% [[Demographics of Singapore#Ethnic groups|Non-citizen/resident]]
{{Tree list/end}}
}}
}}
"""

wikicode = mwparserfromhell.parse(text)
infobox_tpl = wikicode.filter_templates()[0]  # select infobox
ethnic_groups = infobox_tpl.get('ethnic_groups').value  # parameter value of interest
ubl_tpl = ethnic_groups.filter_templates()[0]  # select {{ublist}}
ubl_stripped = ubl_tpl.get('1').value.strip_code()  # stripped parameter value of interest
res = '\n'.join(l.strip() for l in ubl_stripped.splitlines())  # trim leading/trailing whitespace

print(res)

[joycey97]

@JJMC89 Thank you. How to list all "keys" (parameter names) from infobox_tpl if there are other fields like

| ethnic_groups_year     = 2023
| religion_year          = 2020

in the Infobox?

[JJMC89]

param_names = [p.name for p in infobox_tpl.params]

[joycey97]

param_names = [p.name for p in infobox_tpl.params]

Thank you!