Compile time textwrap.dedent() equivalent for str or bytes literals

GitHub fields:

assignee = 'https://github.com/gpshead'
closed_at = None
created_at = <Date 2019-05-13.18:40:31.178>
labels = ['interpreter-core', 'type-feature', '3.10']
title = 'Compile time textwrap.dedent() equivalent for str or bytes literals'
updated_at = <Date 2021-12-20.23:57:51.965>
user = 'https://github.com/gpshead'

bugs.python.org fields:

activity = <Date 2021-12-20.23:57:51.965>
actor = 'iforapsy'
assignee = 'gregory.p.smith'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2019-05-13.18:40:31.178>
creator = 'gregory.p.smith'
dependencies = []
files = []
hgrepos = []
issue_num = 36906
keywords = ['patch']
message_count = 46.0
messages = ['342373', '342407', '342420', '342429', '342477', '342488', '342569', '342600', '342909', '342914', '342915', '342916', '342917', '342918', '342927', '342928', '342931', '342938', '342962', '342965', '342968', '342972', '343961', '343991', '350162', '356153', '356154', '356155', '356160', '356162', '356182', '356193', '356198', '356203', '356204', '365688', '381540', '381544', '381545', '381546', '381584', '381599', '381602', '381605', '382456', '398270']
nosy_count = 14.0
nosy_names = ['rhettinger', 'terry.reedy', 'gregory.p.smith', 'steven.daprano', 'methane', 'serhiy.storchaka', 'josh.r', 'mbussonn', 'pablogsal', 'remi.lapeyre', 'Marco Sulla', 'iforapsy', 'Miguel Amaral', 'jtojnar']
pr_nums = ['13445']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue36906'
versions = ['Python 3.10']