Oracle Object

[rmorshea]

o = Oracle(
    a=Dict(
        x=Dict(
            y=1
        )
    )
)

@view(o)
def changed(events):
    for e in events:
        print(e)

o.a["x"].update(y=2, z=3)

Output:

{'key': 'y', 'old': 1, 'new': 2, 'location': ('a', 'x')}
{'key': 'z', 'old': Undefined, 'new': 3, 'location': ('a', 'x')}