describe PyEval_CallObjectWithKeywords and its replacement

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-10-28.14:18:31.385>
labels = ['expert-C-API', '3.9']
title = 'describe PyEval_CallObjectWithKeywords and its replacement'
updated_at = <Date 2020-10-28.14:18:31.385>
user = 'https://github.com/jwuttke'

bugs.python.org fields:

activity = <Date 2020-10-28.14:18:31.385>
actor = 'jwuttke'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['C API']
creation = <Date 2020-10-28.14:18:31.385>
creator = 'jwuttke'
dependencies = []
files = []
hgrepos = []
issue_num = 42181
keywords = []
message_count = 1.0
messages = ['379828']
nosy_count = 2.0
nosy_names = ['jdemeyer', 'jwuttke']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue42181'
versions = ['Python 3.9']