Shared Memory for array of object

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-02-10.10:13:44.739>
labels = ['type-bug', '3.8']
title = 'Shared Memory for array of object'
updated_at = <Date 2021-07-07.15:13:35.910>
user = 'https://bugs.python.org/hannahbusshoff'

bugs.python.org fields:

activity = <Date 2021-07-07.15:13:35.910>
actor = 'andrei.avk'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2021-02-10.10:13:44.739>
creator = 'hannahbusshoff'
dependencies = []
files = ['49801']
hgrepos = []
issue_num = 43191
keywords = []
message_count = 4.0
messages = ['386769', '386780', '386783', '386803']
nosy_count = 2.0
nosy_names = ['eric.smith', 'hannahbusshoff']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue43191'
versions = ['Python 3.8']