dict_keys_mt_module.eigs

# #1141 shape 6: a module NAMESPACE is a live view of the module env (#1057),
# so `M.k is v` inside a worker creates a BINDING in a sealed root env that
# outlives every worker — the dict key and the env binding name both have to
# survive the writer. Reading it back walks e->names[], which is the half a
# dict-key-only fix leaves dangling.
import dict_keys_mt_module_m
define worker() as:
    dict_keys_mt_module_m.worker_added is 99
    return 0
h is spawn of worker
thread_join of h
h is 0
junk is []
i is 0
loop while i < 2000:
    append of [junk, "junk_string_" + (str of i)]
    i is i + 1
print of f"KEYS 3 {join of [keys of dict_keys_mt_module_m, "|"]}"
print of f"VALS 1 {dict_keys_mt_module_m.worker_added}"