[Python] Accessing any object type from multiprocessing shared_memory?

Suppose I create a shared memory object:

from multiprocessing import shared_memory
shm_a = shared_memory.SharedMemory(create=True, size=1024)
buffer = shm_a.buf


and put a generic object of a generic class, such as:

class GenericClass:
def __init__(self, a, b):
self.a = a
self.b = b


in it:

gen_obj_a = GenericClass(1,6)
buffer = gen_obj_a


Now, in another terminal, I have:

from multiprocessing import shared_memory
existing_shm = shared_memory.SharedMemory(name='psm_21467_46075')


How do I assign a variable, say gen_obj_b, to the GenericClass object in shared memory?

In C++, one would do this by casting a void * to the GenericClass object type, but how is this done in Python with shared memory?

cf. multiprocessing.shared_memory Python documentation

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